KASTER 789

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KASTER 789
Neutral Weather-Proof Silicone

Characteristics
1. KASTER 789 silicone sealant belongs to RTV-1, good extrusion and thixotropy between 40C~400C. Easy to use.
2. Neutral curing, non-corrosive to metal, coated glass, concrete, marble and most kinds of plastic etc.
3. Quickly speed of curing, excellent adhesion, middle modulus, excellent movement capability.
4. Excellent resistance to weather.
5. Excellent resistance to low and high temperature change. Little changes of performance at -400C ~1500C.
6. Excellent adhesive to most common building material, Special material will have better adhesive with priming.
7. Good compatibility with other neutral silicone sealants.
8. Belong to non-dissolvent product, low vulcanization shrinkage and green environmental protection product.

Purpose
1. For weather sealing in glass curtain wall joints.
2. For weather sealing in aluminum, enamel curtain wall joints.
3. For sealing in marble (granite), concrete, tile, metal panel materials etc.
4. Many other building & Industrial uses.

NO.	Item	Data
1	Type	Neutral
2	Density (g/cm 3 )	1.30
3	Capacity movement	± 30%
4	Skinning time	10-20 minutes
5	Drying time(2mm/h)	10-14
6	Drying(4mm/h)	18-22
7	Max. Tensile strength	1.8
8	Hardness shore	25± 2
9	Elongation at Break(%)	≥ 450
10	Modulus Mpa(100%)	0.60
11	Application temperature	-20 c to 40 c
12	Temperature resistance	-50 c to 100 c
13	adhesive	OK
14	Weatherproof	OK
15	Cold-hot adhesive	OK
16	Under water adhesive	OK
17	Elastic Recovery Ratio (%)	98
18	Mass-loss Rate (%)	9.6
Skin drying time and fully drying time under: 23c and 50% humidity