Description
RLA 999 Pressure Sensitive Adhesive is a solvent-free adhesive built for a genuinely wide range of resilient and carpet flooring types — PVC backed, fibre backed and cushion backed carpet tiles, reinforced VCT, and loose lay vinyl planks — rather than being limited to a single flooring category. Its 85% RH concrete tolerance, tested to ASTM F2170, and pH tolerance up to 10.0 give it real flexibility on newer or less-cured slabs.
As with the rest of the pressure-sensitive adhesive range, dry-mode application (letting the adhesive dry and turn clear before laying) gives a releasable bond suited to commercial floors that may need occasional tile replacement, while laying into the wet film before it fully dries creates a stronger, more permanent bond instead.
The choice between a releasable, dry-mode bond and a stronger permanent wet-film bond gives genuine installation flexibility with RLA 999 — a releasable bond suits commercial spaces wanting the option to lift and relay carpet tiles later for maintenance or reconfiguration, while a permanent bond suits areas needing maximum long-term hold. Its 85% RH concrete tolerance and anti-microbial formulation make it a practical choice for a wide range of subfloor conditions without needing a separate moisture barrier in most cases.
Technical Specifications
| Appearance | Creamy paste |
|---|---|
| Coverage (long nap roller, 10mm+) | 8-10m² per litre |
| Coverage (V1 1.6mm trowel) | Approx. 5m² per litre |
| Coverage (V2 2.4mm trowel) | Up to 3m² per litre |
| Moisture tolerance | Up to 85% RH (ASTM F2170) |
| pH tolerance | Up to 10.0 |
| Setting time | Approx. 30 min to 1 hour at 20°C |
| Packaging | 15 litre pails |
| Shelf life | 12 months, unopened |
Where to Use
- PVC-backed, fibre-backed and cushion-backed carpet tiles
- Reinforced Vinyl Composition (VCT) tiles
- Vinyl planks with embossed backing and loose lay vinyl planks
- Double-bond underlays to substrate
How to Apply
- Prepare the substrate — dry, smooth, sound and clean, mechanically prepared if required.
- Prime if needed — highly porous subfloors should be primed with RLA PU95 first.
- Spread the adhesive — select the correct trowel or roller for the specific flooring type.
- Choose the bond type — dry mode for a releasable bond, or lay into the wet film for a stronger bond.
- Roll the installation — roll in both directions with the recommended roller weight.
Important Notes
- Uneven concrete subfloors should be treated with the Roberts and RLA TruLevel range of levelling compounds first.
- Internal use only; don’t apply in direct sunlight.
- Clean tools with warm soapy water; use a suitable solvent cleaner for dried adhesive.
