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SOPREMA Alsan Trafik 421 Polyurethane Primer, Side A, 4 Gal Pail
Regular price $378.81Orders start at $399 — combine any items to reach the minimum. Learn more
SOPREMA Alsan Trafik 421 Polyurethane Primer, Side A, 4 Gal Pail
Soprema Alsan Trafik 421 is a two-component polyurethane primer supplied here as Side A in a 4 gallon pail. It is used within the Alsan liquid-applied system to prime and prepare substrates before membrane application. Combine with the corresponding Side B component and follow Soprema's mixing ratio and application instructions.
Key Features:
- Polyurethane primer: Polyurethane-based primer designed for use with the Alsan Trafik liquid-applied system.
- Two-component chemistry: This is Side A of a two-component system; it must be mixed with the specified Side B.
- 4 gallon pail: Supplied as a 4 gallon pail of Side A.
- System matched: Part of SOPREMA's PMMA/PMA liquid-applied membrane product family.
- Proven system brand: SOPREMA products combine decades of proven performance with commercial roofing, waterproofing and civil engineering solutions.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Soprema |
| Sell unit | 1 pail, 4 gal |
| Product line | Alsan Trafik 421 |
| Available colors | Not stated (1 item listed) |
| Available sizes | 4 gal (1 item listed) |
| Material | Polyurethane (two-component, Side A) |
| Sell unit note | Pail |
| Intended use | Priming substrates in Alsan Trafik liquid-applied waterproofing/roofing systems |
| Assembly | Mix Side A with the corresponding Side B per manufacturer's ratio before use |
Fit and Compatibility:
Formulated for the Soprema Alsan Trafik liquid-applied system; use with the specified Side B component and Alsan membrane. Coverage rates and mixing ratios follow the manufacturer's technical data sheet.
Frequently Asked Questions (FAQ):
Q: What is included in one order?
A: One 4 gallon pail of Alsan Trafik 421 Polyurethane Primer, Side A.
Q: Is this the complete primer?
A: No, it is Side A of a two-component product; the specified Side B must be purchased separately and mixed per the ratio.
Q: What system does it go with?
A: It is part of the Soprema Alsan Trafik liquid-applied roofing and waterproofing system.
Q: Where is it used?
A: To prime substrates before applying liquid-applied membranes in commercial roofing, waterproofing or traffic deck applications.
Q: What is the coverage rate?
A: Coverage is not stated in the available sources; consult the manufacturer's technical data sheet.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
On traffic-bearing PMMA deck systems, primer quality controls adhesion of everything above it, so do not skip or thin the specified Alsan primer. Verify substrate moisture and temperature against the technical data sheet before mixing, and only mix quantities you can apply within the pot life. Always pair this Side A with the matching Side B and batch ratio specified for Alsan Trafik 421.
Two-component polyurethane chemistry requires gloves, eye protection and ventilation per the safety data sheet; avoid skin contact and open flames while mixing and applying.
Get Soprema Alsan Trafik 421 Polyurethane Primer Side A in a 4 gallon pail for your liquid-applied system.
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