Rayson PrimeBond W10 — Acrylic — Rayson pack shot
Rayson PrimeBond Acrylic Interior & exterior

Rayson PrimeBond W10

Rayson PrimeBond W10 is a one-component, water-based acrylic primer, sealer and bonding agent for smooth concrete and mineral substrates, applied ahead of Rayson UraForce water-based topcoats.

Best for

Best for priming floors in occupied buildings — offices, schools and retail — where low odour and single-pack simplicity matter.

Overview

PrimeBond W10 is the low-odour entry point to Rayson floor systems. Supplied ready to use in a single pack, it needs no weighing or ratio mixing — stir for two minutes and apply by brush or roller. It seals smooth concrete and mineral substrates and provides the bond for Rayson water-based urethane topcoats.

The water-based acrylic formulation is low in VOCs and low odour, so it suits occupied buildings, night works and holiday programmes in schools where solvent products are ruled out. For anti-slip build-ups, a fine aggregate can be broadcast into the wet primer to key the finish coats.

Preliminary system testing over this primer records adhesion of at least 1.3 N/mm² on pre-treated substrates — figures that will be confirmed for Rayson formulations during technical review.

Recommended uses

  • Priming and bonding on smooth concrete and mineral substrates
  • Base coat for Rayson UraForce WB52 water-based urethane systems
  • Receiving broadcast aggregate for anti-slip system build-ups

Suitable substrates

  • Smooth concrete (minimum 28 days old, moisture content below 5%)
  • Mineral substrates, mechanically prepared and vacuumed

Key benefits

  • Low VOC and low odour — suited to occupied buildings
  • Single component, ready to use — no mix-ratio errors on site
  • Fast surface dry keeps overnight programmes moving
  • Accepts broadcast aggregate for anti-slip systems

System position: Primer

A primer is the first coat. It seals and strengthens the surface and creates the bond the rest of the system relies on. It is not a wearing surface on its own.

Application method

  • Short-bristled brush
  • Roller

Technical information

The figures below are a guide for planning. Site conditions and workmanship affect results — confirm the details for your project with our technical team.

Coverage 5–10 m² per litre depending on substrate condition
Mixing One pre-weighed component; stir well for 2 minutes with a mixing paddle before use
Drying & curing Surface dry approximately 1 hour at 28 °C
Pack sizes 20 L plastic pail

Limitations

  • Minimum substrate temperature 5 °C; minimum mixing temperature 10 °C; minimum curing temperature 5 °C
  • New concrete must be at least 28 days old with moisture content below 5%
  • Performance data supported by laboratory testing
  • Not a wearing surface — must be overcoated with a compatible topcoat

Not suitable for

  • Use as a stand-alone wearing surface
  • Substrates with moisture content above 5% or under 28 days old
  • Heavy-duty industrial floors better served by epoxy primer systems

Recommended systems

Low-odour floor system for occupied buildings

  1. Prime with Rayson PrimeBond W10
  2. Apply minimum 2 coats of Rayson UraForce WB52 water-based urethane topcoat

Anti-slip walkway system

  1. Prime with Rayson PrimeBond W10 and broadcast fine aggregate into the wet film
  2. Sweep off excess after drying and seal with Rayson UraForce WB52

Frequently asked questions

Is PrimeBond W10 suitable for occupied buildings?

Yes — it is water-based, low VOC and low odour, which is exactly the situation it is designed for. Normal housekeeping around wet coatings still applies.

Does it need mixing with a hardener?

No. It is a single-component product supplied ready to use; just stir thoroughly for about two minutes before application.

How do I build an anti-slip finish from this primer?

Broadcast a fine aggregate into the wet primer, sweep off the excess once dry, then seal with UraForce WB52 topcoat. The aggregate grade sets the texture — our technical team can advise on the right grade for your cleaning regime.

How porous can the substrate be?

Coverage varies from roughly 5 to 10 m² per litre with porosity; very absorbent screeds may need a second priming coat to achieve a full seal.

Can it go straight over a power-floated slab?

The slab still needs mechanical preparation to remove laitance and open the surface — priming is not a substitute for preparation.

Related products

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Rayson UraForce WB52 is a two-component, water-based aliphatic urethane floor topcoat — low-VOC, low-odour and UV-resistant — that can be combined with broadcast aggregate for an anti-slip finish.

  • Surfaces: concrete, cement screed, walls
  • Role: finish
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  • Role: finish
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  • Surfaces: concrete, cement screed
  • Role: primer
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Ready to specify Rayson PrimeBond W10?

Tell us your surface, area and timeline — our Singapore technical team will recommend a practical system and price it fast.