Henry 336 Floor Primer & Latex Liquid Additive
Primer and latex additive used to prep subfloors and improve bond strength before patching or leveling compounds go down.
Free pickup in Markham once it arrives (special order) · GTA delivery $140
Specs
| Category | Adhesives & Primers |
| Size options | 1 gal · 4 gal |
| Unit sold | 1 gal (1 gal) |
| Availability | Special order — call or message us for the current lead time |
| UPC | 81833336405 |
| Code | ARH336-04 |
Documents & Downloads
Official Henry documents for Henry 336 Floor Primer & Latex Liquid Additive — the same warranty, installation and technical sheets our installers work from. PDFs open in a new tab.
- TDSTechnical Data Sheet (12055)EN · 2 pg · 704 KBPDF
- SDSSafety Data Sheet (12055)EN · 6 pg · 152 KBPDF
Need a document that isn't listed, or help reading a spec? Call (647) 428-1111 — we'll pull it from the manufacturer for you.
How to use Henry 336 Floor Primer & Latex Liquid Additive
- 1Confirm the substrate (concrete, wood, gypsum) is clean, dry and free of paint, sealers or curing compounds.
- 2Dilute or apply the primer per the ratio on the container — some primers are used neat, others are diluted with water.
- 3Apply in a thin, even coat with a roller or brush, avoiding puddles.
- 4Let it dry fully (most primers turn from milky to clear when ready) before pouring a leveler or spreading adhesive over it.
- 5Never apply your next product over wet or tacky primer — check the dry-time window on the label for the day’s temperature and humidity.
Related supplies
FAQ
Do I always need to prime before pouring a self-leveler?
On absorbent concrete, yes — nearly every self-leveling underlayment manufacturer requires a compatible primer first so the leveler doesn’t dry too fast at the surface and lose its bond. Skipping the primer is one of the most common causes of a self-leveler failing to bond.
Not sure which product you need?
Use our supplies calculator to get a full kit recommendation for your floor type and subfloor, or ask us directly.