Primers – optimal adhesion & permanently reliable sealing

Our high-quality primers ensure perfect preparation of the surface before joint sealants such as silicone or hybrid adhesives are applied. Using a primer significantly improves adhesion, increases service life and minimises the risk of detachment or leaks.

Whether in the bathroom, in the kitchen, on windows or outdoors – a carefully applied primer forms the basis for a professional joint refurbishment. The use of a primer is essential, particularly on difficult substrates such as natural stone, aerated concrete, wood or plastics.

Advantages of our joint primers

Improved adhesion of the sealant
Longer-lasting joints
Protection against moisture and mould
Optimal preparation of porous and non-absorbent substrates

Discover our wide selection of primers for professional and long-lasting joint solutions.

Allbond-Primer – Primer for PP/PE

Allbond-Primer brush bottle – Perfect adhesion for hard-to-bond plastics The Allbond-Primer in the practical brush bottle was developed specifically to optimise the adhesion of cyanoacrylate reaction adhesives on hard-to-bond plastics such as PP (polypropylene) and PE (polyethylene). With its thin-flowing consistency and easy handling, it ensures reliable, durable bonds – ideal for professional applications in the trade, industry and household. Advantages of the Allbond-Primer Optimal adhesion – perfect bonding even on difficult materials such as PP and PE. Easy application – practical brush bottle for precise, clean work. Combinable – developed for use with cyanoacrylate reaction adhesives such as Allbond-Fluid. Fast drying – saves time during processing. Areas of application Pre-treating PP and PE plastics to improve bonding properties. Optimising bonds in assembly, repair and industrial applications. Use on hard-to-bond material for maximum durability. Technical data Base: solvent Density: 0.69 g/cm³ Viscosity: thin-flowing Odour: characteristic Shelf life: 12 months Storage: at room temperature Application notes Clean surfaces thoroughly before use; keep them dry and grease-free. Apply Allbond-Primer evenly with the integrated brush. Allow the primer to flash off completely before applying the adhesive. Use only in well-ventilated areas and observe the safety data sheet. Safety and storage Store the product tightly closed at room temperature. Always carry out a compatibility test before use. The Allbond-Primer brush bottle is the perfect solution for ensuring the adhesion of cyanoacrylate adhesives on challenging plastics – see its quality and efficiency for yourself!

€6.99*

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BEKO polymer primer

Polymer primer – Bonding agent for plastics such as polypropylene (PP) The polymer primer is a high-quality, ready-to-use bonding agent for plastics with excellent adhesion – particularly on polypropylene (PP). Ideally suited for pre-treating plastic surfaces before bonding or sealing. Product properties Ready-to-use primer – no mixing required Optimal adhesion promotion on many plastics Developed specifically for polypropylene (PP) Even film application for maximum bond strength Ideal as substrate pre-treatment for adhesives or sealants Application advantages Easy application – workable directly from the can High process reliability thanks to dependable adhesion Versatile in use in industry, construction and the vehicle sector Areas of application Pre-treating plastic parts before bonding Particularly suitable for polypropylene (PP) and other plastics Usable in vehicle technology, plastics processing, the construction industry Technical data Workable: from +5 °C to +35 °C Shelf life: unopened 24 months Packaging: standard can

Content: 0.25 Litre (€130.20* / 1 Litre)

€32.55*

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OTTO Cleanprimer 1101 - Der Haftverbesserer

OTTO Cleanprimer 1101 – The adhesion promoter

The adhesion promoter – Solvent-based cleaner with bonding agent Our solvent-based cleaner with bonding agent is more than just a cleaning agent – it is an adhesion promoter with versatile applications. Thanks to its 2-in-1 function, it offers not only effective cleaning but also optimal pre-treatment for various surfaces. Please observe the notes in the data sheet. Properties: No flash-off required: Our adhesion promoter is ready for immediate use. No tedious flash-off time is required, so you can proceed directly with further processing. UV indicator for quality control: An integrated UV indicator allows simple, precise checking of the application using UV light. This lets you ensure that adhesion and cleaning have been carried out optimally. Versatile application: Our adhesion cleaner, also known as Cleanprimer, is suitable for cleaning and improving adhesion on coated and uncoated metallic materials as well as on various plastics such as PVC. Its versatile applications make it an indispensable tool for tradespeople and professionals. Toluene-free: We value environmental compatibility and health protection. Our adhesion promoter is toluene-free, making it a safe, environmentally friendly choice. Give your projects first-class adhesion and cleaning with our adhesion promoter. Discover the advantages now and simplify your work steps.

Content: 0.1 Litre (€351.00* / 1 Litre)

From €18.99*

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OTTO Cleanprimer 1226 - Der Spezial-Cleanprimer

OTTO Cleanprimer 1226 – The special clean primer

The special clean primer – Solvent-based cleaner with adhesion promoter Our special clean primer is a highly effective cleaner with adhesion promoter, developed for demanding applications. With its 2-in-1 function, it offers not only thorough cleaning but also effective pre-treatment for improved adhesion on various surfaces. Please observe the notes in the data sheet. Areas of application: Improving the adhesion of the special silicone S 54 on mastic asphalt screed Improving the adhesion of S 81 on PVC Properties: Cleaning and adhesion improvement: Our special clean primer enables thorough cleaning and improved adhesion on non-absorbent materials such as metals, plastics, glass etc. No flash-off required: You can proceed with the next step immediately after application, as no tedious flash-off is necessary. Toluene-free: We value environmental compatibility and health protection. Our special clean primer is toluene-free, making it a safe, environmentally friendly choice. Give your projects first-class adhesion and cleaning with our special clean primer. Discover the advantages now and simplify your work steps.

Content: 0.1 Litre (€110.60* / 1 Litre)

From €11.06*

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OTTO Primer 1105 - Universal-Primer für saugende Untergründe 100 ml

OTTO Primer 1105 – Universal primer for absorbent substrates 100 ml

OTTO Primer 1105 – Viscous mineral primer for optimal adhesion OTTO Primer 1105 is a high-quality, solvent-based mineral primer for improving adhesion on absorbent and mineral substrates. Thanks to its strongly film-forming action, it is ideal for sealing off alkaline substrates and preparing various materials for sealants, PU foam and coatings. With its short flash-off time, the primer enables fast, efficient further processing on site or in the workshop. The primer was developed specifically to significantly improve the adhesion of OTTO acrylic sealants to mineral materials such as concrete, render, aerated concrete, fibre cement and gypsum. It is also suitable for untreated wood, glazed surfaces, metallic substrates such as anodised aluminium and selected plastics such as PVC. Areas of application Sealing off alkaline substrates Improving the adhesion of OTTO acrylic sealants on mineral substrates Suitable for concrete, render, aerated concrete, fibre cement and gypsum Adhesion improvement on untreated wood and glazed surfaces Application on metallic substrates such as anodised aluminium Suitable for selected plastics such as PVC Product properties Viscous, solvent-based mineral primer Strongly film-forming for reliable substrate sealing Improves adhesion on absorbent and mineral materials Short flash-off time – at least 30 minutes Maximum further-processing time: 3 hours Ideal for professional construction and sealing work Advantages of OTTO Primer 1105 With OTTO Primer 1105 you get a reliable solution for preparing demanding substrates. The special formulation creates a particularly strong adhesion bridge and reduces the risk of adhesion problems with sealants or PU foam. Especially on highly absorbent or alkaline substrates, the primer ensures a secure, permanent bond. Technical notes Flash-off time: at least 30 minutes Maximum flash-off time: 3 hours Substrate must be clean, dry and load-bearing Suitable for mineral and absorbent substrates

Content: 0.1 Litre (€157.90* / 1 Litre)

€15.79*

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OTTO Primer 1215 - Der Silikon-Primer für saugende Untergründe

OTTO Primer 1215 – The silicone primer for absorbent substrates

OTTO Primer 1215 – The powerful silicone primer for absorbent substrates Properties: Special primer for improving adhesion on mineral and absorbent materials Flash-off time of at least 15 minutes (maximum 3 hours) Special notes: OTTO Primer 1215 was developed for OTTO sealants/adhesives in order to guarantee maximum adhesion in combination. Compatibility has been tested and approved by our experts. For other OTTO product groups, substrates or coatings not mentioned, we recommend preliminary tests. Primer and Cleanprimer should be applied precisely to the joint edges and bonding surfaces to avoid contamination and visual changes. The primer contains toluene and is therefore subject to the German Chemicals Prohibition Ordinance (including the self-service prohibition). Technical data: Flash-off time at 23 °C/50% RH [min] > 15 Consumption depending on the absorbency of the substrate [g/m²] ~ 100 - 300 Density at + 23 °C [g/cm³] ~ 0.9 Storage stability at 23 °C/50% RH [months] 12 (*Higher temperatures shorten, lower ones lengthen the flash-off time*) Please note that these data are not intended for drawing up specifications. For specific requirements, please contact OTTO-CHEMIE. Pre-treatment: The bonding surfaces must be cleaned carefully. Any contamination such as release agents, preservatives, grease, oil, dust, water or old adhesives/sealants must be removed. Cleaning non-porous substrates: use OTTO Cleaner T (flash-off time approx. 1 minute) in combination with a clean, lint-free cloth.

Content: 0.1 Litre (€122.90* / 1 Litre)

From €12.29*

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OTTO Primer 1217

OTTO Primer 1217 – Silicone-plastics primer for optimal adhesion OTTO Primer 1217 is a high-quality, solvent-based primer for improving adhesion on many plastics. The specially developed bonding agent combination ensures a secure, permanent bond between substrate and sealant – ideal for professional applications indoors and outdoors. Product advantages at a glance Primer for improving adhesion on many plastics Specially suited to silicone and sealant applications Quick and easy to apply No flash-off time on smooth, non-absorbent substrates Reliable adhesion promotion on critical surfaces Ideal for professional sealing and bonding applications Areas of application OTTO Primer 1217 is optimally suited to pre-treating plastic surfaces in order to significantly improve the adhesion of sealants and adhesives: Suitable for many plastics Pre-treatment before silicone and sealant work For smooth, hard-to-bond substrates For applications indoors and outdoors Product properties Solvent-based bonding agent combination No flash-off time on smooth, non-absorbent materials On absorbent or difficult substrates: at least 15 minutes, at most 3 hours flash-off time Supports secure, permanent adhesion Optimal for professional jointing technology and sealing work

Content: 0.1 Litre (€105.90* / 1 Litre)

From €10.59*

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OTTO Primer 1218

OTTO Primer 1218 – Silicone permanent-wet primer for mineral substrates OTTO Primer 1218 is a powerful, solvent-based primer for improving adhesion on absorbent and mineral materials under permanent wet exposure. Thanks to its film-forming properties, it consolidates the surface and creates optimal conditions for the lasting adhesion of silicone sealants – even under demanding conditions such as underwater areas. Product advantages at a glance Primer for permanently wet areas and underwater applications Improves adhesion on absorbent, mineral substrates Film-forming – consolidates the surface lastingly Underwater-resistant Seals off alkaline substrates Reliable adhesion promotion for silicone sealants Areas of application OTTO Primer 1218 is ideal for applications with permanent moisture or water exposure: Swimming pools and wet areas Mineral substrates such as concrete, mortar and grout Ceramic substrates (including unglazed) Pre-treatment for silicone sealants indoors and outdoors Product properties Solvent-based bonding agent combination Developed specifically for permanent wet exposure Very good adhesion promotion on absorbent substrates Long-term stability and reliable adhesion Flash-off time at least 60 minutes

From €14.88*

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Sika® Primer 215

Sika® Primer-215 – System primer for Sikaflex Tank N This primer is part of the approved joint sealing system with Sikaflex Tank N. Product description Sika® Primer-215 is a colourless to slightly yellowish solvent-based primer that reacts with moisture to form a film-building layer. This layer acts as a link between substrate and adhesive and was developed specifically for pre-treating bonding surfaces in combination with Sikaflex® adhesives. Areas of application Sika® Primer-215 is used to improve adhesion on many plastics such as GRP, epoxy resins, PVC, ABS and on wood. Due to the wide variety of plastic formulations, preliminary tests with original materials under the relevant production conditions should be carried out. Manufacturer recommendations should be observed before using Sika® Primer-215 on materials prone to stress cracking. Product properties Chemical basis: Solvent-based polyurethane primer Colour: Colourless, slightly yellowish Solids content: 34% Application temperature: 5 to 40 °C Application notes: Brush, felt or foam applicator Consumption: Depends on surface porosity, approx. 50 g/m² Flash-off time: ≥ 15 °C: 30 minutes < 15 °C: 60 minutes At most 24 hours Technical information Important note: Sika® Primer-215 reacts with moisture. To maintain product quality, it is important to reseal the can with the inner plastic lid immediately after each use. After first opening, the primer should be disposed of after about one month with regular use, or after two months if the can is opened rarely. The 30 ml can is for single use only. Primer that has gelled, separated or shows increased viscosity should no longer be used. Do not dilute or mix Sika® Primer-215 with other substances. When used on transparent or translucent substrates such as glass, plastics etc., adequate UV protection for the bonding surface is mandatory. Application notes The bonding surfaces must be clean, dry and free of grease, oil, dust and contamination. Adhesion can be improved before applying the primer with further pre-treatment steps such as sanding, cleaning and activating. Application Application can be carried out with a brush, felt or foam applicator. Apply Sika® Primer-215 evenly and thinly but with full coverage. The optimal application and surface temperature is between 15 °C and 25 °C. Apply the primer only once, ensuring that the single application provides sufficient coverage. Consumption and method of application depend on the nature of the substrates. Close containers tightly immediately after each use. Sika® Primer-215 – for optimal adhesion on plastics and wood, safe and reliable in use.

€87.15*

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Sika® Primer-107

Sika® Primer-107 – Silane-based one-component primer for non-absorbent substrates Sika® Primer-107 (formerly MSeal P 107) is a high-quality, one-component bonding agent on a silane basis, developed specifically for use on non-absorbent substrates such as stainless steel, non-ferrous metals and polymer concrete. It optimises the adhesion of the Sikaflex® CR 170 and CR 171 joint sealants and ensures a permanent, secure bond indoors and outdoors. Product advantages: Very good adhesion capability on stainless steel, non-ferrous metals and polymer-bound concrete substitute (PRM/PRC) Low viscosity – for easy, quick application One-component – ready for immediate use without mixing Transparent – discreet application Typical areas of application: Adhesion promotion on non-absorbent substrates such as alloyed steel (e.g. stainless steel) Application on polymer concrete (UP resin) or glazed ceramics Usable indoors and outdoors Technical properties: Material temperature: +5 °C to +40 °C Substrate & air temperature: +5 °C to +40 °C Dew point: component temperature at least 3 °C above the dew point Flash-off time: at least 10 minutes at 23 °C / 50% RH Can be overworked with sealant: 10 to a maximum of 30 minutes Packaging & colour: Container: 1 litre (packaging unit: 4 pieces/box) Colour: transparent Certifications & approvals: Tested in the system with Sikaflex® CR 170 / CR 171 General building-authority approvals: Z-74.6-166 (CR 170) & Z-74.6-168 (CR 171) Usable as a system component in Sikalastic® 7801 AS per Z-59.31-428

Content: 4 Piece (€40.21* / 1 Piece)

€160.85*

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Sika® Primer-115 – 1000 ml

Sika® Primer-115 – System primer for Sikaflex® TS Plus (1 litre) Sika® Primer-115 is a high-quality, one-component, transparent reactive primer for improving the adhesion of Sikaflex® sealants on porous and absorbent substrates. The primer was developed specifically as the system primer for Sikaflex® TS Plus and is mandatory for applications on concrete in accordance with building-authority approval Z-74.62-151. Thanks to its special formulation, Sika Primer-115 ensures reliable adhesion promotion between sealant and substrate. It is particularly suitable for mineral and highly absorbent building materials such as concrete or freshly cut asphalt, and enables permanently secure sealing in the construction and industrial sectors. Thanks to the short flash-off time of at least 30 minutes, processing can proceed efficiently. The maximum further-processing time is up to 8 hours, ensuring sufficient flexibility during application. Areas of application System primer for Sikaflex® TS Plus Adhesion improvement on porous and absorbent substrates Suitable for concrete Suitable for freshly cut asphalt Applications per approval Z-74.62-151 on concrete Product properties One-component, transparent reactive primer Optimises the adhesion of Sikaflex® sealants Developed specifically for Sikaflex® TS Plus Short flash-off time: at least 30 minutes Maximum flash-off time: 8 hours Ideal for porous and absorbent substrates Simple, safe application

€86.69*

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Sika® Primer-127

Sika® Primer-127 – Two-component epoxy resin primer for steel and galvanised steel Sika® Primer-127 (formerly MSeal P 127) is a high-quality, two-component primer on an epoxy resin basis for optimal adhesion promotion and corrosion protection for steel, galvanised steel and cathodic dip-coated (KTL) surfaces. The primer was developed specifically for use with the polysulphide sealants Sikaflex® CR 170 and CR 171. Product advantages: Two-component primer and corrosion protection in one – ideal for weathered edge areas Excellent adhesion to steel, galvanised steel and KTL coatings Optimal system compatibility with Sikaflex® CR 170 and CR 171 Long-term protection indoors and outdoors Typical areas of application: Primer for KTL-coated steel Bonding agent and corrosion protection on steel, iron, cast iron Pre-treating galvanised steel before jointing with polysulphide sealants Technical properties: Packaging: 1 litre combination pack Colour: red-brown Application: brushing or rolling Can be overworked with sealant: 8–36 hours after application Temperature when mixing: 15–25 °C Mixing ratio: components A + B, mix thoroughly (min. 3 minutes) Substrate preparation: The bonding surfaces must be load-bearing, clean, dry and free of oil, grease, loose components or coatings. For steel substrates, blasting (SA 2 ½ or St 3 per DIN EN ISO 12944-4) is mandatory. Completely remove old coatings of unknown composition. Application notes: Avoid puddle formation Allow to cure tack-free before jointing The primer does not replace the cleaning of the bonding surfaces Increased consumption possible with longer working times Cleaning: Cured primer can only be removed mechanically Clean hands with suitable cleaning wipes or industrial hand cleaner and water – do not use solvents Certifications & approvals: Tested with Sikaflex® CR 170 and CR 171 DIBt approvals: Z-74.6-166 (CR 170), Z-74.6-168 (CR 171) Component in the Sikalastic® 7801 AS system (approval Z-59.31-428)

€267.75*

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Sika® Primer-157

Sika® Primer-157 – Two-component primer for asphalt & mastic asphalt Sika® Primer-157 (formerly MSeal P 157) is a high-quality, two-component primer on a polysulphide-epoxy resin basis. It was developed specifically for adhesion promotion for the polysulphide sealants Sikaflex® CR 170 and CR 171 on asphalt and mastic asphalt. Thanks to its film-forming properties, it also offers a sealing protective film. Product advantages: Film-forming and sealing – for reliable protection of the joint flanks Very good adhesion to asphalt and mastic asphalt Optimal penetration behaviour for permanently resilient bonds Compatible with Sikaflex® CR 170 and CR 171 Areas of application: Bonding agent for asphalt surfaces in road and civil engineering Joint pre-treatment on mastic asphalt for bridges, parking decks or industrial areas Technical properties: Product type: two-component polysulphide-epoxy resin primer Colour: transparent Packaging: 1 litre combination pack Flash-off time: approx. 4 hours at 20 °C (tack-free), overwork after 8 hours at the latest Application temperature: 15–25 °C (component & substrate temperature) Substrate preparation: The joint flanks must be load-bearing, clean, dry and free of oils, greases, loose components, paints and separating substances. The surface is wet-cut or ground with diamond tools to achieve a finely grippy texture. Before application, the substrate must be thoroughly cleaned (vacuumed/blown off) and completely dried. Mixing & application: Stir component A thoroughly. Add component B completely and mix homogeneously with a stirrer at approx. 300 rpm for at least 2 minutes. Apply with a roller or brush to prepared substrates – no puddle formation! Before jointing, the primer must be cured tack-free. Cleaning: Cured primer can only be removed mechanically. Clean hands with cleaning wipes or water & industrial hand cleaner – do not use solvents on the skin. Certifications & approvals: Tested with Sikaflex® CR 170 and CR 171 on mastic asphalt DIBt approvals: Z-74.6-166 (Sikaflex® CR 170) / Z-74.6-168 (Sikaflex® CR 171)

€60.59*

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SIKA® Primer-3 N / Voranstrich für poröse und metallische Untergründe

SIKA® Primer-3 N / primer for porous and metallic substrates

Content/size: 250 ml

One-component, solvent-based reactive primer Product properties and advantages: For porous and smooth substrates: Ideal for a variety of surfaces. Can be used on matt-damp, absorbent substrates: Perfect for demanding conditions. Transparent: Unobtrusive application on various materials. Short flash-off time: Efficient working thanks to fast drying. Easy application: Convenient to handle. Areas of application: The reactive primer is specially developed for use with SikaBond®, Sikaflex®, SikaHyflex® and Sikasil® products. It is excellent for use on: Matt-damp and dry, porous, absorbent substrates (e.g. concrete) Metals Technical application information: Air temperature: Min. +5 °C, max. +40 °C Substrate temperature: +5 °C to +40 °C, at least 3 °C above the dew point. There must be no condensation on the surface. Flash-off time: At least 30 minutes, at most 8 hours. The minimum flash-off time applies to temperatures above 15 °C; lower temperatures extend the flash-off time. Material consumption: Absorbent substrates: ~250 linear metres of joint* per litre Metals: ~400 linear metres of joint* per litre *Joint approx. 20 x 15 mm With our one-component, solvent-based reactive primer you achieve optimal adhesion and reliable results. See for yourself how easy it is to use and how versatile its applications are!

Content: 0.25 Litre (€70.00* / 1 Litre)

€17.50*

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Primers – optimal adhesion & permanently reliable sealing

Advantages of our joint primers