Basements and Underground Structures
Spray on prepared concrete for a continuous external waterproofing layer, with drainage or protection board selected for the buried assembly. Resolve substrate moisture, joints and penetrations before spraying.
Spray Quick-Setting Rubber Asphalt Coating
A two-component, cold-sprayed rubber asphalt system for large areas and complex waterproofing details. Component A is a modified rubber-asphalt emulsion; Component B is a separate coagulant. They meet during spraying and gel rapidly. Plan the matched A+B supply, spray equipment, design thickness and protection layer together.
Two-Component A+BCold SprayGel Time ≤5 sHard Dry ≤24 hLarge-Area Projects
Typical Applications
Dedicated dual-feed, two-nozzle spray equipment
For project-specific pricing, send your technical requirements and destination port.
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Quick specifications
- System
- Component A modified rubber-asphalt emulsion + Component B coagulant
- Application
- Dedicated dual-feed, two-nozzle spray equipment
- Gel Time
- ≤5 seconds
- Hard Drying Time
- ≤24 hours under specified test conditions
- Solid Content
- ≥55%
- Water Impermeability
- 0.3 MPa for 30 minutes, no seepage
- Tensile Strength
- ≥0.80 MPa, untreated
- Elongation at Break
- ≥1000% untreated; ≥800% after listed treatments
Product overview
Plan the spray system before ordering the coating
Spray quick-setting rubber asphalt is a two-component waterproofing system. Modified rubber-asphalt emulsion and coagulant are fed separately through specialist equipment and contact each other during spraying. The rapid gel helps the liquid stay on vertical and irregular surfaces; the finished layer must still be built to the specified thickness and allowed to dry before follow-on work.
For a procurement team, the key distinction is between buying material and buying a workable project supply. The A and B quantities, pump configuration, working ratio, substrate preparation, detail reinforcement and protection course all affect the installed result. A quote that omits those items cannot be compared fairly with another waterproofing system.
Technical indices include ≤5 seconds for gelation and ≤24 hours for hard drying, alongside ≥1000% untreated elongation, ≥85% elastic recovery, 0.3 MPa / 30-minute watertightness and 120 ± 2°C heat resistance. These figures guide specification review; project documents and current supply details should be aligned before site acceptance.
Applications
Utility Corridors and Complex Profiles
Mechanized spraying follows changes of plane, recessed areas and service entries where sheet cutting and lap management become labor-intensive. Detail reinforcement remains necessary where the design calls for it.
Protected Roof Assemblies
A continuous layer can be specified beneath an approved roof finish or protection course. Permanent outdoor exposure requires a separately verified exposed-roof system; rapid gel alone is not evidence of UV durability.
Water-Engineering Projects
Potential use in engineered channels or basins depends on the project water chemistry, immersion conditions and approvals. Potable-water contact and chemical resistance need project-specific evidence.
Key benefits
Separate Feed, Controlled Co-Spray
The liquid components remain separate in storage and delivery lines, then contact each other as the two spray fans intersect. This makes equipment setup and ratio control a quality checkpoint for every project.
Documented Gel and Drying Stages
The two time figures answer different site questions: initial gelation and subsequent hard drying. Keeping them distinct helps contractors schedule protection and inspection without treating a newly gelled film as fully ready.
Elastic, Seam-Free Field
Untreated elongation is ≥1000% and elastic recovery is ≥85%. These are material indices; actual installed performance still depends on detail design, substrate adhesion, thickness and protection.
Inspect Punctures and Bond
Nail-rod watertightness and bond strength on dry and moist bases are included in the technical indices. Site acceptance should also check overspray, voids, junctions and the continuity of the finished coating.
Technical specifications
Two-component spray rubber-asphalt performance indices
| Test Item | Unit | Test Condition | Project Index |
|---|---|---|---|
| Solid content | % | Minimum | ≥55 |
| Gel time | s | Maximum | ≤5 |
| Hard drying time | h | Maximum | ≤24 |
| Heat resistance | °C | No flow, slip or drip | 120 ± 2 |
| Water impermeability | MPa / min | No seepage | 0.3 / 30 |
| Bond strength | MPa | Dry and moist base | ≥0.40 |
| Elastic recovery | % | Minimum | ≥85 |
| Nail-rod watertightness | — | Penetration test | No seepage |
| Low-temperature flexibility | °C | Untreated, no cracking | −20 |
| Low-temperature flexibility | °C | After alkali, acid, heat or UV conditioning | −15 |
| Tensile strength | MPa | Untreated | ≥0.80 |
| Elongation at break | % | Untreated | ≥1000 |
| Elongation at break | % | After alkali, acid, heat or UV conditioning | ≥800 |
Swipe to view the full table →
Installation guide
View documents ↓Confirm the Assembly
Define the substrate, design dry-film thickness, detail reinforcement, protection course and acceptance checks. Confirm that this A+B system is specified for the intended location.
Prepare and Mask
Remove loose material, dust, oil and standing water; repair unsound areas and mask adjacent finishes against overspray. Confirm substrate moisture and primer requirements for the selected project.
Set Up and Trial-Spray
Use dedicated dual-feed equipment. Check separate A/B lines, pressure, spray-fan intersection and the working component ratio against the supplied application instructions. Trial-spray and inspect gelation before starting the field.
Spray, Inspect and Protect
Treat corners and penetrations first, then spray the main area in controlled overlapping passes to the design thickness. Check continuity and let the film reach the required stage before protection, traffic or backfill. Clean equipment by the approved procedure.
Packaging & OEM
Request Matched A+B Quantities
State the project area, target thickness, spray equipment model and destination port. Confirm component ratio, pail or drum sizes, total quantities and shipment arrangement in the quotation.
Request the Installation Package
Ask for grade-specific technical and safety documents, component identification, equipment settings and project test requirements before site work.
Technical downloads
Spray Rubber Asphalt Coating TDS
Request via contact form
Spray System Application Guide
Request via contact form
Related product
Frequently asked questions
What is supplied with the A+B spray system?
Component A is the modified rubber-asphalt emulsion and Component B is the coagulant. Their working ratio, pack sizes and required spray equipment must be confirmed together for the quoted project; buying only the base emulsion is not a complete spray system.
Does a five-second gel time mean the surface is ready for traffic?
No. Gel time describes the initial set; hard drying may take up to 24 hours under test conditions. Site temperature, humidity, thickness and substrate affect the follow-on schedule. Inspect the film before allowing traffic or installing protection.
How is this different from non-curing rubber asphalt coating?
This is a cold-sprayed A+B emulsion designed to gel and form an elastic membrane. Non-curing rubber asphalt remains tacky and is commonly used as a bonding layer in a coating-and-sheet assembly. The two products need different equipment and installation sequences.
Can it be sprayed on a moist substrate?
Bond strength is specified for both dry and moist bases, but that is not permission to spray over standing water or an unsound surface. Confirm the accepted substrate condition and primer method for the project.
Which numbers should go into a purchase inquiry?
Provide project area, designed dry-film thickness, substrate, exposed or protected location, number and type of details, available spray equipment, destination port and required technical standard. Request matched A+B quantities and the corresponding installation documents.
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