Industrial Neutral Silicone HM-SS5521 |
Items |
C*a/T*b/S*c/O*d |
Unit |
Typical Value |
Requirement |
Test Std. |
Eqv. Std. |
Appearance |
|
- |
- |
Fine, uniform paste without bubbles, crusts, gels |
Test StQ/QY-00-T001d |
- |
Density |
|
g/cm3 |
1.4 |
1.4±0.10 |
GB/T 13477.2 |
- |
Solid Content |
|
% |
94.8 |
≥90 |
GB/T 2793 |
JIS K6833:1980 |
Leveling |
|
|
0 |
≤1 |
GB/T 13477.6 |
ISO 7390:1987 |
Tack free |
///Finger |
min |
20 |
≤40 |
GB/T 13477.5 |
ASTM D2377:2000 |
Curing Depth |
24h/// |
cm |
3 |
≥2 |
GB/T 32369 |
- |
Curing Depth |
7h/// |
cm |
6 |
≥5 |
GB/T 32369 |
- |
Hardness, Shore A |
7h/// |
- |
30 |
25-35 |
GB/T 531.1 |
ISO 7619-1:2004 |
Elongation at break |
7h/// |
% |
260 |
≥200 |
GB/T 528 |
ISO 37:2005 |
Tensile Strength |
7h/// |
MPa |
1.7 |
≥0.80 |
GB/T 528 |
ISO 37:2005 |
Notes: *a, Conditioning: Specimen is precisely conditioned under (23±2) ºC, with a relative humidity of (50±5)%, unless specified otherwise.
*c, Substrate
*b, Testing Condition: Specimen is tested at optimal conditions of (23±2) ºC, with a (50±5)% relative humidity, unless indicated otherwise.
*d, Additional specifications may be required.
Note: The information provided herein serves as a guideline for application purposes only and should not be employed to draft definitive product specifications.
PRODUCT DESCRIPTION
1. This innovative sealant is a one-part, neutral curing solution featuring outstanding flexibility and high movement capacities, specifically crafted for demanding applications.
Ideal for gasket replacement or enhancing gasket coatings in high-temperature environments.
2. User-friendly application: Cures upon exposure to ambient moisture, transforming into a robust, flexible silicone rubber gasket.
3. Demonstrates remarkable resilience against aging, weathering, and thermal cycling, maintaining integrity without hardening, shrinking, or cracking.
FEATURES
1. Superior high temperature resistance.
2. Ensures no corrosion.
3. Exceptional resistance to automotive oils.
4. Enhances load-bearing capacity and shock absorption in bonded areas.
5. Simplified application process.
APPLICATION
1. Perfectly suited for various automotive components such as oil pans, transmission housings, valve chamber covers, timing gear covers, and differential housings.
2. Performs efficiently across a temperature range from -54°C to 260°C.
RESTRICTIONS
1. Do not apply to substrates where surface temperatures exceed +50ºC or fall below 5ºC. Avoid surfaces in direct contact with food.
2. Not suitable for high-pressure seals; avoid use for seals in contact with gasoline; unsuitable for cylinder head gaskets.
3. Not recommended for structural glazing applications.
STORAGE AND SHELF LIFE
Ensure 12 months of shelf life by storing unopened in a cool, dry environment at temperatures between +5ºC and 27ºC, with humidity levels maintained between 30% and 70%.
Optimal storage conditions are within the lower half of these temperature and humidity ranges for best results.
To maintain product integrity, avoid returning unused material to its original container.
COLOR AND PACKAGE
Available in Black.
Various color options available.
Packaging options: 85g, 300ml, 600ml.
Different packaging configurations are offered.
SAFETY
Keep out of children's reach. Prior to use, thoroughly review the product specifications, material details, and container packaging instructions.
For comprehensive safety information, please




Company Profile
Introducing Nanjing Howell Pioneers in New Materials Technology Co., Ltd.
Magnificently situated at Room 501, Unit 7, within the prestigious Xingzhihui, Xinghuo Rd 19th, Jiangbei New District, Nanjing, (211899), Jiangsu, China.
Our American Warehouse:is conveniently located at Add: 1006 CROCKER RD, DOOR E5, WESTLAKE, OH 44145.