Acrylic emulsion for Wood stain-blocking Primer
WL-1302 is a Specially modified water based acrylic dispersion ,
Designed for use as a stain-blocking sealer to minimize the “bleed
through” of wood tannins .
Tannin staining:Brownish or tan discoloration on the paint surface
due to migration of tannins from the substrate through the paint
film.
Possible cause:Failure to adequately prime and seal the surface
before applying the paint.
Solution:apply a high quality stain-resistant solvent-based or
water-based primer.
WL-1302 Typical Data:
Item | WL-1302 | Test Method |
Appearance | Bluish milky white or light yellow liquid | Visual Observation |
Non-Volatile Matter (%) | 40±2 | GB1725-79 (30min@120℃) |
Viscosity (mPa.s) | ≤1000 | NDJ-79 Rotational Viscometer |
pH | 7.00～9.00 | pH Meter, 25℃ |
Solvent Content | ≦5% | ----- |
Particle Size (nm) | 50±5 | GB/T 19077-2016 Sedimentograph |
Resin Properties:
- Excellent blocking effect(as wood contains tannin acids that can
bleed);
- Excellent permeability;
- Excellent shear stability and good storage stability
Storage:
The product shall be stored in a cool and dry condition, the
quality guarantee period is 12 months, and the expired products
still can be used if passing the inspections.
Applications:
This product is nano-scale special modified acrylic dispersion, has
small particle size and good permeability, can be used as a single
component waterborne wood sealing primer.
Notes:
The specification is a general introduction to the products of our
company, it will be adjusted with the product improvement, please
contact with our company to obtain the latest product description.
