Custom Building Products
Custom Building Products Multi-Surface Bonding Primer
1 gal
A multi-surface bonding primer that improves adhesion on hard-to-bond subfloors before leveling or tiling.
$94.70/ gal
Ready for Markham pickup next business day
Free pickup in Markham (ready next business day) · GTA delivery $140
Specs
| Category | Adhesives & Primers |
| Unit sold | 1 gal |
| Availability | Ready for Markham pickup next business day |
| UPC | 10186229584 |
| Code | CCPMBP1 |
How to use Custom Building Products Multi-Surface Bonding Primer
- 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.
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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.