Structural Silicone Adhesive 3M Scotch Weld DP8005 For Low Surface Energy Plastic
3M Scotch Weld DP8005 Low Surface Energy Plastic Structure Adhesive
Basic Properties
3M Scotch-Weld DP8005 is a two-part acrylic structural adhesive available in Translucent and Black variants. It features a 10:1 mix ratio by volume, 2-2.5 minute worklife, and room-temperature curing (8-24 hours), designed for bonding low-surface-energy plastics without surface pretreatment.
Product Description
DP8005 enables direct structural bonding of polyolefins (e.g., PP, PE), replacing screws, welding, or chemical etching. Its solvent-free formulation delivers exceptional water resistance (95% strength retention after 14-day immersion at 160°F) and chemical resistance (withstands acids, alkalis, coolants), while flexible cured properties absorb stress.
Characteristics
| Property | DP8005 Value | Source in TDS |
|---|---|---|
| Mix Ratio (Volume) | Base : Accelerator = 10 : 1 | Typical Properties Table |
| Worklife (One-Sided @23°C) | 2-2.5 minutes | Handling/Curing Section |
| Handling Strength Time | 2-3 hrs (50 psi shear) | Typical Properties Table |
| HDPE Shear Strength @23°C | 1100 psi (Substrate Failure) | Overlap Shear Strength Table |
| T-Peel Strength (HDPE) | 17 pli (Substrate Failure) | T-Peel Strength Table |
| Chemical Resistance (Gasoline) | 25-50 psi (Cohesive Failure) | Environmental Exposure Table |
| Bondline Thickness | 0.005-0.008 in (optimized) | Handling/Curing Section |
Application Scenarios
Automotive Repair: Bonds cracked PP/TPO bumpers, validated for 14-day coolant immersion (1025 psi retention), compliant with Ford repair standards.
Packaging Machinery: Bonds UHMWPE guides to metal frames, resistant to 10% NaOH (1075 psi) and 180°F (300 psi), tripling service life
Outdoor Equipment: Seals HDPE tank liners to FRP housings, passes 71°C/100% RH aging (925 psi) and salt spray (1100 psi), applied in agricultural sprayers.
Consumer Electronics: Bonds ABS/PC keyboard assemblies, prevents stress cracks from screws, 17 pli peel strength (substrate failure), meets drop-test standards.
FAQ:
1. Who are we?
We are Shenzhen Huazhisheng New Material Technology Co., Ltd., a professional industrial adhesives and sealants supplier based in China since 2018. we serve global markets: Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).
2. What products do you offer?
we supply high-performance adhesives and sealants from global leaders including:
Cemedine, Dow Corning, Shin-Etsu, Araldite, and Momentive,etc.
3. How do you guarantee product quality?
Quality assurance through:
Mandatory pre-production samples approval
Final inspection by QC team before shipment
International certifications: SGS, UL, FDA, RoHS, REACH
4. Why choose us over other suppliers?
Reliable Supply:Authentic products from top manufacturers
Expert Support:Technical guidance for product selection
Global Compliance:Certifications meeting target market standards
Efficient Service:Customized solutions & professional support
5. What services do you provide?
Delivery:EXW/FOB/CIF
Payment:USD/EUR/CNY/HKD via T/T, L/C
Support:Technical consultation & logistics coordination
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.