Sika makes specialty adhesives, sealants, primers, and activators for marine bonding and sealing work. Find the system pieces you need for a lasting bond. Building a Sika System Sika bonding and sealing jobs often use more than one product. Activators like Aktivator-100 and Aktivator-205 prep and clean the surface so the adhesive grips. Primers such as Primer-206 and Primer-209 then prepare specific substrates, from glass to painted surfaces, for a strong bond. Skipping these steps is the most common reason a sealant lets go early. Choosing by Job Match the product to the substrate and the load. Read the label for the surfaces it is rated for, the cure time, and whether a primer or activator is required first. Bottle...
Sikaflex®-715 - White - 300ml CartridgeSemi self-leveling roof membrane sealer.Sikaflex®-715 is a one-component silane terminated polymer (STP) sealant that cures on exposure to atmospheric humidity. Its unique flow...
Sika®-Cleaner 205 is a special adhesion promoting solution for the pre-treatment of bonding surfaces prior to bonding or sealing with Sikaflex® products. Sika®-Cleaner 205 improves adhesion and gives...
Sikaflex® 521UV UV Resistant LM Polyurethane Sealant - 10.3oz(300ml) Cartridge - WhiteSikaflex®-521 UV is a multi-purpose, UV resistant, non-sag, elastic, one-part silane-terminated polymer sealant, which cures on exposure...
Sikaflex ® -221 is the most well known brand of one component polyurethane sealant/adhesive in the world. Our workhorse. This fast curing product provides permanent elastic adhesion to...
Sikaflex ® 291 is a 1-component, polyurethane elastomeric adhesive and sealant. Its fast cure time makes it ideal for applications where speed is important. It has excellent adhesion...
Sikaflex ® 291 is a 1-component, polyurethane elastomeric adhesive and sealant. Its fast cure time makes it ideal for applications where speed is important. It has excellent adhesion...
Sikaflex® 505UV High Performance Exterior Grade Sealant - 10.3oz(300ml) Catridge - WhiteSikaflex®-505UV is a one-component silane terminated polymer (STP) with excellent UV and weathering resistance, and excellent adhesion...
Sikaflex® 221 Multi-Purpose Polyurethane Sealant/Adhesive - 10.3oz(300ml) Cartridge - Aluminum GraySikaflex®-221 is a high-quality multi-purpose non-sag 1-c polyurethane sealant/adhesive that cures on exposure to atmospheric humidity to form...
Sikaflex® 221 Multi-Purpose Polyurethane Sealant/Adhesive - 10.3oz(300ml) Cartridge - BlackSikaflex®-221 is a high-quality multi-purpose non-sag 1-c polyurethane sealant/adhesive that cures on exposure to atmospheric humidity to form a...
Sikaflex® 295 UV - Black - 10oz Tube with NozzleExterior sealant and direct glazing adhesive for organic glass in Marine applications. Sikaflex®-295 UV is a 1-component polyurethane adhesive...
Primer-209 D Black 250ml BottlePigmented, solvent-based primer for paints and plastics. Sika® Primer-209 D is a solvent-based black primer, which reacts with moisture and forms a thin layer....
Primer-207 - Pigmented, Solvent-Based Primer for Various SubstratesSika® Primer-207 is a solvent-based black primer that reacts with moisture and forms a thin layer. This layer acts as a...
Primer-206 G+P Black 250ml BottlePigmented, solvent-based primer for various substrates. Sika® Primer-206 G+P is a solvent-based black primer, which reacts with moisture and forms a thin layer. This...
Aktivator-100 Clear 250ml BottleTransparent solvent-based adhesion promoter for various substrates. Sika® Aktivator-100 is a solvent-based colorless adhesion promoter, which reacts with moisture and deposits active groups on the...
Sikaflex® 291 Fast Cure - White - 3oz TubeSikaflex® 291 is a 1-component, marine grade polyurethane elastomeric adhesive and sealant. Used by many boat builders, its fast cure...
Sikaflex® 291 LOT Slow Cure Adhesive & Sealant 10.3oz(300ml) Cartridge - MahoganySikaflex®-291 LOT is a 1-component, marine grade polyurethane elastomeric adhesive and sealant. It is a moisture cured,...
Sikaflex® 291 LOT Slow Cure Adhesive & Sealant 10.3oz(300ml) Cartridge - BlackSikaflex®-291 LOT is a 1-component, marine grade polyurethane elastomeric adhesive and sealant. It is a moisture cured,...
Sikaflex® 291 LOT Slow Cure Adhesive & Sealant 10.3oz(300ml) Cartridge - WhiteSikaflex®-291 LOT is a 1-component, marine grade polyurethane elastomeric adhesive and sealant. It is a moisture cured,...
SikaBiresin® AP077 White Gallon BPO Hardener RequiredSikaBiresin® AP077 is a polyester filler and fairing compound that offers the user a smooth workable paste with a set fast cure...
SikaBiresin® AP017 White Gallon Can BPO Hardener RequiredThe brand SikaBiresin® represents specialized liquid resins based on polyurethane and epoxy. A part of this brand is dedicated to classic...
Primer-206 G+P Black 1L BottlePigmented, solvent-based primer for various substrates. Sika® Primer-206 G+P is a solvent-based black primer, which reacts with moisture and forms a thin layer. This...
Sikasil®-N Plus Clear 10oz with NozzleSikasil®-N Plus US is a general-purpose, one-component, non-sag, elastomeric, 100% RTV neutral cure silicone sealant. Meets the requirements of ASTM C-920, Type S,...
Sikaflex® 295 UV - White - 10oz Tube with NozzleExterior sealant and direct glazing adhesive for organic glass in Marine applications. Sikaflex®-295 UV is a 1-component polyurethane adhesive...
SikaBiresin® AP861 - White - QuartApplications:Compatible with fiberglass, wood, aluminum, steel marine vesselsFeatures: Fairing compound system Can be applied up to 1” thick without sagging or shrinking during...
Sika makes specialty adhesives, sealants, primers, and activators for marine bonding and sealing work. Find the system pieces you need for a lasting bond.
Sika bonding and sealing jobs often use more than one product. Activators like Aktivator-100 and Aktivator-205 prep and clean the surface so the adhesive grips. Primers such as Primer-206 and Primer-209 then prepare specific substrates, from glass to painted surfaces, for a strong bond. Skipping these steps is the most common reason a sealant lets go early.
Match the product to the substrate and the load. Read the label for the surfaces it is rated for, the cure time, and whether a primer or activator is required first. Bottle sizes range from 250ml to 1L for activators and primers, so you can buy a small bottle for a single project or a larger one for ongoing work. When in doubt, follow the Sika prep sequence for the best result.
Often yes. Sika activators clean and prep the surface and primers prepare specific substrates. Check the adhesive label, since skipping these steps is a common cause of early failure.
They are surface activators for different applications. Always confirm the product against the substrate and adhesive you are using on the label.
Many Sika primers and activators are offered in 250ml and 1L bottles, so you can match the quantity to the size of your project.
Sika offers marine grade bonding and sealing products, but you should verify the specific product is rated for your substrate and application on its label.
