WACKER GP
WACKER® GP (GENERAL PURPOSE) is a one-part Acetoxy silicone sealant for many applications. It cures at room temperature in the presence of atmospheric moisture to give a permanent flexible silicone rubber.
Properties:
- Long shelf-life
- Non-sag
- Readily gunnable at low (+ 5 °C) and high (+ 40 °C) temperature
- Rapid crosslinking: quickly becomes tack-free and crack-resistant
- Flexible at low (- 40 °C) and high (+ 100 °C) temperatures after cure
- Adheres excellently to most nonporous siliceous materials (e.g. glass, tiles, ceramics, enamel, glazed tiles); impregnated, varnished or painted wood and some plastics.
- The adhesion can be improved in many cases by pretreatment of the substrate with a primer.
- It should not be used on substrates such as marble, concrete, fibrous cement and mortar, as the product releases acetic acid during curing and not in contact with metals such as lead, copper, brass or zinc due to corrosion.
WACKER® GP – GENERAL PURPOSE is usually supplied in standard size cartridges that fit all standard
caulking guns.
Colors: Transparent, Bronze, Gray, Black, Brown, White, Beige.
- Sealant for a variety of do-it yourself applications.
- Suitable for many general industrial sealing and bonding uses.
| Technical Properties | |
| Basis | Acetoxy Silicone Sealant |
| Uncured / un-volcanized paste | |
| Density at 23 °C (ISO 1183-1 A) | 0,97 g/cm³ |
| Consistency | non-sag |
| Extrusion rate at 6 bar (Internal method) | 800 g/min |
| Skin forming time at 23 °C / 50 % r.h. (Internal method) | approx. 25 min |
| Cured / vulcanized rubber | |
| Hardness Shore A (ISO 868) | 18 |
| Modulus at 100 % (joint) (ISO 8339-A) | 0,36 N/mm² |
| Tensile strength (joint) (ISO 8339-A) | 0,5 N/mm2 |
| Ultimate elongation (joint) (ISO 8339-A) | 150 % |
| Modulus at 100 % (S2-dumbbell) (ISO 37) | 0,29 N/mm² |
| Tensile strength (S2-dumbbell) ISO 37 | 1,22 % |
| Ultimate elongation (S2-dumbbell) ISO 37 | 520 % |
| Movement capability ISO 9047 | none |
| Temperature resistance (°C) | -50 to 150 |
These figures are only intended as a guide and should not be used in preparing specifications.