KASTAR 973 Construction Sealant – Strong & Durable
KASTAR Sealant for Construction is a high-quality silicone polymer-based sealant & adhesive. Our all-purpose and everyday standard-grade sealant and flexible bonding solution of preference for professional and DIY applications. Eco-Friendly Sealing for Wide
Skin time: 10 mins
Tack free time: 10-20 min (23°C and %50 R.H.)
Curing rate: >3.5mm/ 24 hr (23°Cand %50 R.H.)
Hardness Shore A: About 40 – 50
Elongation at break: ≥300%
KaStar Universal is the best quality silicone polymer-based sealant & adhesive. They are the first choice for professional users, as well as DIY users for general sealing and flexible bonding tasks. Efficient and Environmentally Sound Sealing Solutions for Vast Array of Substrates.
- Strong resistance and bonding strength when used for high-quality durable filling.
- Free of solvent, silicone, and isocyanate.
- Very Low VOC content,
- It does not form bubbles even when it is wet or even humid environment Furthermore.
- Very good UV resistance
- Water-based paints can be applied in successive over–coating of the base coat or any subsequent coats.
- No shrinkage
- Primarily applies to many other surfaces (initial try is advised)
1. In sheet metal fabrication, the connection joints, the sealing of air conditioning systems, etc.
2. Dynamic welding in oscillatory structures.
3. Sealing of floor movement joints and low movement wall joints.
4. All industries and processes using containers, cisterns, silos, etc.
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Chemical Base | Silane Modified Polymer |
Curing System | Moisture |
Density | 1.60 gr/ml |
Appearance/Color | Paste, White, Black, Grey |
Skin time | 10 mins |
Tack free time | 10-20 min (23°C and %50 R.H.) |
Curing rate | >3.5mm/ 24 hr (23°Cand %50 R.H.) |
Hardness Shore A | About 40 – 50 |
Elongation at break | ≥300% |
Tensile strength | ≥0.8Mpa |
100% Tensile Modulus | ≤0.4Mpa |
UV resistant | No change. |
Shirkage | ≤ 1.5% |
Service Temperature | -50°C to +120°C |
Application Temperature | +5°C to +35°C |
Shelf life | 12 months |
Chemical Base | Silane Modified Polymer |
Curing System | Moisture |
Density | 1.60 gr/ml |
Appearance/Color | Paste, White, Black, Grey |
Skin time | 10 mins |
Tack free time | 10-20 min (23°C and %50 R.H.) |
Curing rate | >3.5mm/ 24 hr (23°Cand %50 R.H.) |
Hardness Shore A | About 40 – 50 |
Elongation at break | ≥300% |
Tensile strength | ≥0.8Mpa |
100% Tensile Modulus | ≤0.4Mpa |
UV resistant | No change. |
Shirkage | ≤ 1.5% |
Service Temperature | -50°C to +120°C |
Application Temperature | +5°C to +35°C |
Shelf life | 12 months |

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