The Spray Gun Moves. The Coating Is Already Set.
There’s something you notice about this product before you even look at the spec sheet: there is no brush in the box. No roller. No trowel. Just two drums — labeled A and B — and a manufacturer’s note that says “for plural-component spray equipment.”
That’s because the application method isn’t an afterthought. It is the point.
Two liquid streams travel through separate hoses. Component A is a core-shell emulsion — rubber particles encapsulating asphalt droplets, stabilized to stay liquid for months. Component B is a coagulant — a simple metal salt solution. At the nozzle tip, the two streams collide for the first time at high velocity. The salt breaks the emulsion. The rubber particles crash out of suspension. The asphalt is released. Within three to five seconds of hitting the substrate, what was two separate liquids is now a continuous rubber film — fully bonded, fully elastic, 2–3 millimeters thick.
That’s not curing. That’s gelation. It’s physical, not chemical — the same principle that makes hot asphalt emulsion break on contact with road aggregate, engineered to happen in seconds at the tip of a spray gun. The film continues to strengthen as residual water evaporates over the next 24 hours, but the gel — the solid, waterproof gel — is there in under five seconds.
This changes the economics of large-area waterproofing at a fundamental level. A two-person crew with a plural-component pump covers 500 to 1000 square meters per day. Brush or roller crews on the same type of work might cover 100 to 200. The pump doesn’t get tired, doesn’t vary its application thickness from square meter to square meter, and doesn’t create the pinholes that come from uneven roller loading. Every square meter gets the same film thickness because the machine delivers it at a constant ratio, independent of who’s holding the gun.
The chemistry also handles conditions that trip up other systems. The physical gelation means there’s no stoichiometric dependency — unlike chemical-cure coatings where an off-ratio mix means incomplete cure, this system tolerates slight ratio variance because it’s not waiting for a chemical reaction to complete. Damp concrete? Fine — the water in the emulsion and the moisture in the substrate are part of the same evaporation process. Cold weather? The gelation still happens at the nozzle tip — the only variable is how long the residual water takes to evaporate afterward.
The coating complies with JC/T 2428-2017 with spray-specific performance parameters. Compared to the non-curing rubber asphalt coating — which stays permanently soft as a composite bonding layer — this product gels in seconds into a standalone waterproof membrane. Weifang Tianyuan manufactures the A and B components directly. The coagulant ratio, the gelation speed, and the drum labeling are all adjustable to your local spray equipment and climate conditions. Send us your pump specifications and project parameters — we’ll send you a matched formulation and a quote.
