Roof Deck Adhesive - 5 Litre
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Product Information
Full details
The ClassicBond EPDM Roof Deck Adhesive is designed for professional roofers and DIY enthusiasts who need a reliable, high-strength solution for bonding EPDM roofing membranes to timber deck surfaces. Its primary benefit lies in its low-odour, high-performance acrylic formula that ensures a secure, long-lasting bond on flat roof installations. A key caveat to note is that this adhesive is specifically formulated for timber surfaces; it is not suitable for use on other substrates, and users must ensure the surface is clean and dry before application for optimal results.
All features
| Model Part Number | 521003 |
|---|---|
| Brand | ClassicBond EPDM |
Extended Product Information
FAQs
Can I use this on a concrete roof deck?
No, this adhesive is specifically designed for timber deck surfaces only.
What is the total coverage of one 5-litre bucket?
One 5-litre bucket covers approximately 14-20 square metres, depending on the porosity of the timber.
Is this adhesive suitable for vertical upstands?
This product is primarily intended for horizontal flat roof surfaces. Please refer to your ClassicBond installation guide for vertical detailing.
How long does the adhesive take to cure?
Curing time varies based on temperature and humidity, but it typically forms a strong bond within 24 hours.
Do I need to prime the timber first?
Generally, no, provided the surface is clean, dry, and smooth. However, ensure the timber is free of any treatments that might repel adhesives.
Can I store the leftovers for another project?
Yes, provided the lid is sealed tightly and the product is kept in a cool, frost-free environment.
Troubleshooting
Adhesive is not bonding effectively
Ensure the timber surface is completely dry and free of dust or oil; check if the adhesive was applied too thinly.
Membrane has bubbles after installation
Use a broom or roller to push out trapped air from the center towards the edges before the adhesive fully cures.
Adhesive has thickened or hardened in the bucket
The product may have been stored in extreme temperatures. Always store in a temperate environment above 5°C.
Pros and Cons
Pros
- Significantly lower odour compared to traditional solvent-based adhesives
- Provides high-strength, reliable adhesion to timber decks
- Simple application process using standard roller equipment
- Covers a practical area of 14-20 square metres per bucket
Cons
- Limited to use on timber surfaces only
- Requires specific surface preparation for maximum effectiveness
- Cannot be used in freezing temperatures
Setup, Compatibility & Care
Before starting, ensure your timber deck is free of debris, grease, and moisture. Store the adhesive in a cool, dry place above 5°C to prevent the product from freezing, which can compromise the chemical structure. Compatibility is guaranteed specifically with the ClassicBond EPDM system; using this with unauthorized membranes may lead to bond failure. During application, wear protective gloves to prevent skin contact. After completing your project, tightly seal the lid to prevent the remaining adhesive from skinning over or drying out, and clean your rollers immediately with warm, soapy water.