Low viscosity for deep penetration into dense and porous concrete
Priming prepared concrete on car park decks and ramps
Rayson PrimeBond S30
Rayson PrimeBond S30 is a two-part, low-viscosity, solvent-based epoxy primer that penetrates and seals prepared concrete, pavements and mineral substrates before coating.
Best for
Best for priming dense or absorbent concrete on car park decks, ramps, walkways and industrial floors where deep penetration is needed.
Real product · Interactive depth view Rayson PrimeBond
Product system Rayson PrimeBond S30
Part A 10 litres / Part B 10 litres per set RY-TDS-103
Rayson PrimeBond S30 has one clearly defined, verifiable job in the coating system.
Rayson PrimeBond S30 is a two-part, low-viscosity, solvent-based epoxy primer that penetrates and seals prepared concrete, pavements and mineral substrates before coating. Best for priming dense or absorbent concrete on car park decks, ramps, walkways and industrial floors where deep penetration is needed.
Excellent adhesion — bond strength exceeds concrete cohesion on prepared substrates
Priming pavements, walkways, loading bays and industrial floors
Excellent impact and chemical resistance in the cured film
Sealing existing concrete before recoating
Deep penetration. Reliable adhesion.
A low-viscosity epoxy primer that penetrates and seals prepared concrete before the floor system is applied—ideal for car park decks, ramps and industrial floors.
A controlled route to applying Rayson PrimeBond S30.
This sequence supports early planning. It does not replace the current Technical Data Sheet, approved method statement or project-specific technical review.
- 01
Inspect and prepare the substrate
Prepared new and existing concrete (minimum 28 days old, moisture content below 5%)
- 02
Prepare the material as specified
Two pre-weighed parts, mix ratio 1:1 by weight; mix mechanically for at least 2–3 minutes; pot life up to 30 minutes at 28 °C
- 03
Apply with the correct tools
Recommended methods: Roller, Brush, Airless spray. Confirm coat count and thickness for the project.
- 04
Protect through the required cure
Final cure 7 days; minimise heavy traffic for 8 hours after application on pavements
Coating system cutaway
Every layer has a job—from prepared substrate to service surface.
This diagram explains a typical system position, not a fixed specification. Primer, body coat, finish, thickness and detailing must be confirmed for the project.
Position in the system Primer
Rayson PrimeBond S30 serves as the primer. Confirm the complete build-up against the substrate, exposure and project requirements.
Related system products
Review primers, body layers, finishes or specialist components connected to this product.
- Compatible body coat and finishSelected for the service exposure and complete system
- Rayson PrimeBond S30Primer · Epoxy
- Correctly prepared substratePrepared new and existing concrete (minimum 28 days old, moisture content below 5%)
Four project facts for faster system screening.
These current product figures support early selection. Confirm the final build-up, quantity and application conditions against the Technical Data Sheet and site conditions.
- Coverage
- Coverage
- Mixing & working time
- Mixing
- Drying & curing
- Curing
- Pack configuration
- Pack
5–6 m² per litre per coat; minimum 2 coats on normal or dense concrete — varies with substrate porosity
Two pre-weighed parts, mix ratio 1:1 by weight; mix mechanically for at least 2–3 minutes; pot life up to 30 minutes at 28 °C
Final cure 7 days; minimise heavy traffic for 8 hours after application on pavements
Part A 10 litres / Part B 10 litres per set
Confirm the substrate and real service environment before specifying.
Choose it when
- Priming prepared concrete on car park decks and ramps
- Priming pavements, walkways, loading bays and industrial floors
- Sealing existing concrete before recoating
- Priming mineral and highly absorbent substrates
Relevant applications
Relevant industries
Choose something else when
- Minimum substrate temperature 5 °C; curing between +10 °C and +35 °C; concrete moisture content maximum 5%
- Mixed material must be used within its pot life; cures faster in hot weather and in large batches
- Solvent-based — provide adequate ventilation; not recommended for occupied areas without ventilation control
- Not a wearing surface — must be overcoated
- Occupied or poorly ventilated areas — solvent-based formulation
- Use as a finished wearing surface without an overcoat
- Substrates with moisture content above 5%
Other Rayson products to evaluate
These links continue the comparison; they are not automatic substitutes. Confirm the substrate, exposure and complete build-up before selection.
Substrate requirements+
- Prepared new and existing concrete (minimum 28 days old, moisture content below 5%)
- Mineral substrates, including highly absorbent surfaces
- Asphalt (confirm suitability with the technical team)
Technical documents and project support
Ready to specify Rayson PrimeBond S30? Give Rayson the site conditions.
Send the area, substrate condition, expected traffic or exposure, required finish and programme. The technical team can help review the system build-up and estimated quantity.
What to know before specifying Rayson PrimeBond S30.
Why does dense concrete need two coats?
Dense, power-floated concrete absorbs very little primer, and porous concrete absorbs unevenly. Two thinner coats achieve consistent wetting and a uniform seal, which prevents defects in the finish coats above.
Can PrimeBond S30 be used indoors?
Only with adequate ventilation during application and cure — it is solvent-based. For enclosed or occupied areas, PrimeBond E20 (solvent-free) or PrimeBond W10 (water-based) are the safer choices.
How long before the deck can take traffic?
Keep heavy traffic off for at least 8 hours after application on pavements, and note the primer itself is not the wearing surface — full return to service depends on the complete system. Confirm programme timings with our technical team.
What preparation does the concrete need?
Mechanical preparation by shot blasting, milling or diamond grinding to a sound, open surface, with weak concrete removed, defects patched and all dust vacuumed off.
Does it work on damp slabs?
Substrate moisture must not exceed 5%. For slabs that cannot meet this, PrimeBond E20 tolerates damp surfaces — discuss the slab condition with our technical team.
Related products
Prime PrimeBond
Rayson PrimeBond E20
Solvent-free · damp tolerant
Rayson PrimeBond E20 is a two-component, medium-viscosity, solvent-free epoxy bonding primer that anchors resin floor systems to concrete, screed, asphalt and prepared metal — on dry or damp substrates.
Finish UraForce
Rayson UraForce SB72
UV-stable polyurethane finish
Rayson UraForce SB72 is a two-component, solvent-based polyurethane floor finish that holds its colour and high gloss under strong UV while resisting abrasion and a broad range of chemicals.
Finish UraForce
Rayson UraForce SB65
Two-part · 4 L + 1 L
Rayson UraForce SB65 is a two-component, solvent-based aliphatic polyurethane clear topcoat with excellent abrasion resistance, non-yellowing behaviour and outstanding weather durability for concrete, metal and stone.
Finish HydroShield
Rayson HydroShield WE40
Self-priming · water-based
Rayson HydroShield WE40 is a two-component, water-based epoxy used as a self-priming primer-and-topcoat system on concrete, screed, asphalt and metal — including damp surfaces.