The 3M 851J is a green polyester film tape featuring a unique silicone-rubber adhesive system, designed for demanding high-temperature masking and protection applications. Withstanding continuous temperatures from –40°C to +155°C, it offers exceptional adhesion, clean removal, and excellent corrosion resistance. Ideal for PCB electroplating masking, automotive parts masking, powder coating and paint baking, LED panel manufacturing, electrical insulation, and composite processing, this tape ensures precise and reliable performance in critical processes. We also offer the standard 3M 851 version and provide die-cutting customization based on your specific requirements. We can also supply high-quality substitute options.
1. Withstands continuous temperatures from –40 °C to +155 °C, ideal for high-temperature masking and protection.
2. The unique silicone-rubber adhesive system ensures strong initial tack and increasing adhesion with heat exposure.
3. Removes cleanly from surfaces like glass, plastic, metal, and wood—leaving no adhesive residue or requiring cleanup.
4. Exhibits excellent corrosion resistance, preventing solutions or gases from penetrating under the mask.
5. Offers outstanding holding power and lift resistance, even under thermal cycling and harsh dynamic conditions.
| Product Number | 3M 851J |
| Backing | Polyester (PET) |
| Color | Translucent Green |
| Adhesive Type | Silicone/Rubber Blend |
| Total Thickness | 0.091 mm |
| Size | 1168mm*33m |
| Temperature Range | -40℃ to 155℃ |
| Adhesion to Stainless | 30 0z/in |
| Tensile Strength | 398 N/100 mm |
| Elongation at Break | 250% |
* Ideal for PCB electroplating masking, especially for protecting gold fingers and circuit traces.
* Suitable for automotive parts masking during plating, painting, or high-temperature finishing.
* Used for powder coating and paint baking, masking holes, edges, and critical surfaces.
* Perfect for LED panel manufacturing, protecting sensitive components during reflow soldering.
* Applied in electrical insulation for motors, transformers, and heating elements.
* Effective in composite processing, preventing resin or thermal media contamination during curing.
GBS Die Cut, as adhesive tape supplier, focuses on the research & development, production and sales of various types of adhesive tapes for different industries and has been authorized as golden distributor of many noted brands for so many years, such as Nomex, Formex, Rogers Poron, 3M, Tesa, and so forth.
In the medical industry, medical tapes are not just for simple fixation; they play a crucial role in wound care, medical device adhesion, and surgical protection, directly impacting patient comfort
In today’s world, where efficiency, safety, and aesthetics are highly valued, floor marking tapes play a vital role in floor protection and guidance. Among these, 3M 471 Floor Tape stands
For inquiries about our products or price list, pls leave your email to us and we will be in touch within 24 hours.
