Product Description
Thin-coat and skim plasters look flawless only when the substrate behaves. A wall with uneven porosity pulls water out of the wet plaster at different rates across its surface, causing rapid drying, mapping, crazing and surface dusting that ruins a fine finish. Our Thin Plaster Primer (YT-600-7) is a high-density polymer base designed to seal surface micro-pores, neutralize substrate alkalinity, and regulate suction before the thin coat goes on. Installers get a uniform, micro-textured barrier that slows water loss just enough for the plaster to complete hydration and reach its design strength without cracking. The low-VOC, eco-friendly formulation suits both residential and commercial interiors where indoor air quality matters.
A flawless thin finish depends as much on consistent primer quality as on skill. We produce this primer on advanced automated emulsion lines, blending active mineral micro-fillers with high-grade acrylic resins that chemically key to the underlying concrete or masonry. That mineral-resin combination is what gives the subsequent plaster layers a strong mechanical anchor rather than a slippery film. For distributors and painting contractors, a primer that performs evenly across mixed substrates - cement boards, gypsum boards, blockwork - reduces callback risk and protects the reputation of the finished wall. Backed by our R&D center data on interlayer adhesion and moisture resistance, it is a low-VOC step that lifts the whole system.
Specifications
|
Parameter |
Specification |
|
Product model |
YT-600-7 |
|
pH value |
7.0 – 9.0 |
|
Coverage rate |
0.15 – 0.20 kg/m² per coat (by substrate porosity) |
|
Water resistance |
No blistering or peeling after 48 hours water immersion |
|
VOC content |
Ultra-low, meeting international environmental standards |
|
Key components |
Acrylic resins and active mineral micro-fillers |
|
Substrates |
Concrete, masonry, gypsum board, cement board, CMU |
|
Packaging |
20 L heavy-duty plastic bucket |
Applications
- Interior and exterior wall prep before thin-coat plaster or skim coating - evens out suction so the fine coat hydrates uniformly without crazing.
- Priming gypsum boards, cement boards and concrete masonry units - the mineral-resin key bonds dissimilar boards into one continuous, plaster-ready surface.
- Renovation of old, dusty plaster walls before repainting or replastering - locks down powdery surfaces and neutralizes alkalinity so the new coat does not map or peel.
Customization
Adjustable viscosity, drying speed and solid content for your market's climate; custom colour formulations; OEM 20 L branded buckets with technical data sheets carrying your company details.
Packaging & Transportation
20 L heavy-duty plastic buckets, staggered on wooden pallets and secured with high-strength stretch film. Dispatched in FCL containers EXW Deqing, with moisture-absorbing gel packs to protect quality during sea transit.
FAQ
Q: Why is a primer needed before thin-coat plaster?
A: Thin coats have little body to self-compensate for uneven substrate suction. The primer evens out water loss so the plaster hydrates evenly, preventing crazing and dusting.
Q: Can it be used on gypsum board?
A: Yes. It is suitable as a primer on gypsum boards, cement boards and concrete masonry units, creating a uniform base for the thin finishing coat.
Q: What coverage should I budget?
A: Approximately 0.15 to 0.20 kg per square meter per coat, depending on how porous the substrate is; more porous walls will sit toward the higher figure.
Hot Tags: thin plaster primer, China thin plaster primer suppliers, factory, AAC Panel Repair Mortar, Lightweight Block Masonry Adhesive, Lightweight Block Primer, Mosaic Surface Treatment Agent, renovation plaster, Tile Refinishing Coating
