MDPU 8102 Low viscosity polyurethane structural adhesive
- Low VOC, ROHS/REACH compliant
- It can be dispensed by machine or mixed by hand
- Strong adhesion to various substrates
- High toughness, high elasticity
- Excellent resistance to aging and chemicals
- Low viscosity
MDPU 8102 A/B is a two-component solvent-free room temperature curing adhesive. Low odor, low VOC, compliant with ROHS and REACH regulations. Wide process operability, high physical properties of finished products, suitable for machine dispensing can also be manual mixing operation; Good adhesion after curing, strong adhesion, excellent flexibility and elasticity, and good aging resistance and chemical resistance. It is suitable for sealing and bonding of metal, plastic, rubber, polyester and other materials.
Product parameter table
| Test item | Units and Conditions | Test standard | A / B | |
| Appearance | A | Visual | Visual | Yellow viscous fluid |
| B | Visual | Blue liquid | ||
| Viscosity | A | 25℃,mPa·s | GB/T 2794-2022 | 25000 ~ 50000 |
| B | GB/T 2794-2022 | 15000 ~ 30000 | ||
| A+B | GB/T 2794-2022 | 20000 ~ 30000 | ||
| Density | A | 25℃ g/cm3 | GB/T 13354-1992 | 1.25±0.05 |
| B | GB/T 13354-1992 | 1.25±0.05 | ||
| A+B | GB/T 13354-1992 | 1.23 ~ 1.28 | ||
| Ratio | Volume ratio | A: B | 1:1 | |
| Weight ratio | A: B | 1:0.96 | ||
| Operating time | 25℃min | GB/T 2794-2022 | 8 ~ 12 | |
| Tack free time | 25℃ min | GB/T 13477.5-2002 | 25-50 | |
| Full curing time | 25℃ days | — | ≥7 | |
| Item | Units or conditions | Test standard | MDPU 8110 | |
| Color | Visual | Visual | Green | |
| Hardness | Shore D | – | 65±10 | |
| Tensile strength | MPa | GB/T 528-2009 | 10 | |
| Elongation | % | GB/T 528-2009 | 100 | |
| Shear strength | MPa, Al-Al | GB/T 7124-2008 | ≥10 | |
| Shear strength | MPa, PET-PET | GB/T 7124-2008 | ≥8
100% cohesion failure |
|
| Thermal conductivity | W/m.K | GB/T 10297-2015 | 0.24 | |
| Volume Resistance | 25 ° C, Ω·cm | GB/T 1692-2008 | ≥10 | |
| Dielectric strength | 25 ° C, kV/mm | GB/T 1695-2005 | 18 | |
| Application temperature | ℃ | GBT 20028-2005 | -40 ~ 85 | |
Bond strength of various materials
| Curing condition | Base material | Bonding strength MPa | Failure mode |
| Room temperature for 7 days | ABS-ABS | ≥5 | Substrate breakage |
| ABS-PC | ≥4 | Substrate fracture, cohesion failure | |
| PC-PC | ≥5 | Substrate fracture, interface damage | |
| 50 ° C for 5 hours | PET-PET | ≥8 | Substrate break, 100% cohesive break |
| Al/Al | ≥10 | Substrate break, 100% cohesive break |
- Bonding aluminum to aluminum structure of new energy batteries
- Bonding of substrate with fabric, felt, decorative board, PET film and other covering materials
- Sealing and bonding of all kinds of metal and plastic, rubber, polyester and other materials
Using process
- Twin tube, when using the assembly of static mixing tube for mixing operation, pay attention to the front 10cm row of glue to ensure uniform mixing;
- Barreled products, need to use the pressure plate pump for glue supply, through the metering device after mixed construction;
- Need glue supply system, please consult MDTECH;
