Customization: | Available |
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Application: | Automobile, Construction, Woodworking |
Bonding Function: | Sealing and Potting |
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SP271 is a two-component, low Tg, high thermal conductivity potting compound with excellent thermal conductivity, aging resistance and chemical resistance.
Key Features:
1. Low viscosity, easy to apply;
2. -25ºC glass transition temperature, high thermal conductivity, flame retardant grade UL94-V0.
Typical Applications:
Packing and Storage:
Shelf life:
Part A: 6months
Part B: 6 months
In unopened packaging in a cool and dry storage place at temperatures between 8ºC to 28ºC.
Package specification:
Part A: 25kg/bucket
Part B: 25kg/bucket
Specification of Part-A (resin) | |||
Items | Standard | Specification | Typical value |
Colour | Visual | Blue | Blue |
Viscosity (mPa.s) (Brookfield, 7# 10rpm) | GB/T 2794 | 80000-120000 | 105000 |
Density (g/cm3) | GB/T 13354 | 2.0 ± 0.1 | 2.08 |
Specification of Part-B (hardener) | |||
Items | Standard | Specification | Typical value |
Colour | Visual | Yellow | Yellow |
Viscosity (mPa.s) (Brookfield, 7# 10rpm) | GB/T 2794 | 150000-250000 | 200000 |
Density (g/cm3) | GB/T 13354 | 2.0 ± 0.1 | 2.08 |
Specification after mixture | |||
Items | Standard | Specification | Typical value |
Mixing ratio | Volume ratio | A:B=1:1 | / |
Colour | Visual | Green | Green |
Viscosity (mPa.s) (Brookfield, 7# 10rpm) |
GB/T 2794 | 150000-200000 | 180000 |
Density (g/cm3) | GB/T 13354 | 2.0 ± 0.1 | 2.08 |
Tack free time (min) | / | 10-40 | 25 |
Pot life (min) | / | 40 - 60 (adjustable) | 40 |
Specification after cured | |||
Items | Standard | Specification | Typical value |
Tensile strength (MPa) | GB/T 528 | ≤ 1.5 | 0.8 |
Elongation (%) | GB/T 528 | ≥ 10 | 15 |
Shear strength (MPa) 3003 Alu - 3003 Alu |
GB/T 7124 | ≤ 1.0 | 0.6 |
Hardness (Shore A) | GB/T 531 | 80 ± 5 | 80 |
Thermally conductivity (W/m.k) | ASTM D 5470 | 2.0 ± 0.1 | 2.05 |
Volume resistivity (Ω·cm) | ASTM D 257 | ≥ 1012 | 2×1012 |
Flame retardant (UL-94) | ANSI/UL-94 | V-0 | V-0 |
Service temperature (ºC) | / | -40 ~ +80 | / |
Note: The above typical values were all detected at 25 ºC; |