
Product Highlights
| Outstanding Peelability | The Film Is Easy to Clean and Leaves No Residue. | Excellent Film-Forming Properties |
| Perfectly Shields Against Splashes | Moderate Viscosity and Adhesion | Safe and Eco-Friendly Formula |
Product Overview
KEY-289PVA Emulsion is a water-based vinyl acetate-ethylene copolymer emulsion.
This product prevents debris splatter and crack formation on workpiece surfaces such as lenses, wafers, silicon wafers, metals, and ceramic substrates after cutting, thereby improving processing yield rates.
Physical and Chemical Parameters
Solid Content | 57~59% |
| Kinematic Viscosity | 500~2500 mPa·s (25℃) |
| pH | 3.5~5.0 |
| Density | ≈1.09 g/cm³ (20℃) |
| Frost Resistance | Avoid Freezing |
| Primary Particle Size | 0.5~1.0 µm |
| Compatibility with Pigments and Fillers | Outstanding |
| Glass Transition Temperature | ≈17℃ |
Scope of Application
This product rapidly forms a uniform organic protective film on the surfaces of workpieces such as lenses, wafers, silicon wafers, metals, and ceramic substrates. It promptly dissipates heat, preventing excessive cutting gaps caused by laser thermal energy diffusion. It effectively minimizes post-cutting debris splatter, prevents workpiece cracking, chipping, and surface scratches, thereby enhancing processing yield rates.
Workpiece surfaces remain smooth with no slag residue, improving machining precision. Cut edges are flat and burr-free with narrow gaps, while preventing damage to processing equipment from sparks and fumes. This boosts processing efficiency and reduces equipment and material costs.
Also suitable for producing high-strength, low-water-absorption A2-grade fire-resistant aluminum-plastic composite core materials. It features high tensile strength and low water absorption.
Withstands high-temperature drying without yellowing. Exhibits excellent adhesion to pigments and fillers, resulting in core materials with high peel strength after composite fabrication.
Packaging Specifications
5 kg/barrel (4 barrels/box)
Storage and Transportation
Store in an environment between 5°C and 30°C to prevent the adhesive from freezing. Once frozen, it cannot be used.
Transport using clean trucks. Stack individual packages no higher than five layers, with the bottom layer secured on anti-slip pallets to prevent crushing, deformation, or tipping.
Ensure proper sealing, avoid direct sunlight, and keep away from high heat.
Unopened shelf life: 9 months.
Shenzhen Varmia Technology Co., Ltd.
Address: Building A, Da Wan Cultural Plaza, No. 4128
Dongcheng Huan Road, Malan Subdistrict, Pingshan District, Shenzhen
Tel: 0755-27659820
Fax: 0755-27659830
Mobile: 13302956659 (Mr. Wang)
Email: hmy-tech@163.com
Shenzhen Varmia Technology Co., Ltd. (Longgang Branch)
Address: 2nd Floor, Building 12, Anbo Technology Industrial Park,
Baolong 4th Road, Baolong Avenue, Longgang District, Shenzhen
Tel: 0755-27659820
Fax: 0755-27659830
Mobile: 13392832759 (Ms. Jin)
Email: hmy_jinjing@yeah.net
Copyright @ 2018 ShenZehn Varmia Technology Co.,Ltd Te:0755-27659820 Fax:0755-27659830
Address: Building A, Dawan Culture Plaza, No. 4128 Dongcheng Ring Road, Mawei Street, Pingshan District, Shenzhen Mailbox:hmy-tech@163.com