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KEY-289 PVA Emulsion Etching Protective Adhesive
Product Highlights
Excellent peelability | The adhesive film is easy to clean and leaves no residue. | Good film-forming properties |
Perfectly isolates splashes | Moderate viscosity and adhesion | Safe and environmentally friendly formula |
Product Introduction
KEY-289PVA emulsion is an aqueous vinyl acetate-ethylene copolymer emulsion.
This product can prevent chipping and cracking on the surfaces of workpieces such as lenses, wafers, silicon wafers, metals, and ceramic substrates after cutting, thereby improving the yield of processed products.。
Physicochemical parameters
| Solid content | 57～59% |
| Dynamic viscosity | 500～2500 mPa·s （25℃） |
| pH | 3.5～5.0 |
| Density | ≈1.09 g/cm³ (20℃) |
| Frost resistance | Avoid freezing |
| Main particle size | 0.5～1.0 µm |
| Compatibility with pigments and fillers | Excellent |
| Glass transition temperature | ≈17℃ |
Application Scope
- This product can quickly form a uniform organic protective film on the surface of workpieces such as lenses, wafers, silicon wafers, metals, and ceramic substrates, which can promptly disperse heat, prevent the thermal energy of the laser from spreading and causing the cutting path to be too large, effectively prevent the splashing of debris after cutting, prevent workpiece cracks, chipping, and surface scratches, and improve the processing yield.
- The workpiece surface is smooth and free of slag residue, improving processing accuracy. The cut surface is smooth and flat without burrs, with a narrow cutting gap. It also avoids damage to the processing equipment caused by the generated spatter and dust, improving processing efficiency and saving equipment and material costs.
- It is also suitable for producing A2-grade fire-resistant aluminum composite panel core materials with high strength and low water absorption. It has high tensile strength and low water absorption.
- It can be dried at high temperatures without turning yellow. It has excellent adhesion to pigments and fillers, and the resulting core material has high peel strength.
Packaging specifications
5kg
Storage and Transportation
It is recommended to store the glue in an environment of 5-30℃ to prevent it from freezing. Once frozen, the glue cannot be used.
Transport using clean trucks, with each package stacked no more than five layers high, and the bottom layer secured with a non-slip pallet to prevent squeezing, deformation, or tipping.
Keep sealed, avoid direct sunlight and high heat.
Unopened, 9-month warranty period.
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