Sikasil® GP-101
General purpose acetoxy cure silicone sealant
Sikasil® GP-101 is a general purpose, one-component, non-sag, elastomeric, room-temperature vulcanizing (RTV) acetoxy silicone sealant with good adhesion characteristics for general sealing and bonding applications.
- Listed under NSF/ANSI 51 - Food Equipment Materials (dependent on color)
- Joint movement accomodation ±25 % per ISO 11600
- Superior UV and heat resistance
- Very good gunning & tooling
- Solvent free
PRODUCT BENEFITS
- Listed under NSF/ANSI 51 - Food Equipment Materials (dependent on color)
- Joint movement accomodation ±25 % per ISO 11600
- Superior UV and heat resistance
- Very good gunning & tooling
- Solvent free
Usage
Sikasil® GP-101 can be used for food equipment and appliance assembly. Other areas of application include general sealing of windows, HVAC, trucks, trailers, and RVs. This product is suitable for experienced professional users only. Tests with actual substrates and conditions have to be performed to ensure adhesion and material compatibility.Packaging
| Cartridge | 295 ml |
Product Details
| Chemical base | 1-component silicone | |
| Color (CQP001-1) | Almond, aluminum, black, bone, translucent, transwhite, white | |
| Cure mechanism | Moisture-curing | |
| Cure type | Acetoxy | |
| Density (uncured) | translucent colors | 0.98 kg/l (8.2 lb/gal) 1.02 kg/l (8.5 lb/gal) |
| Application temperature | 5 ─ 40 °C (41 ─ 104 °F) | |
| Skin time (CQP019-1) | 15 minutes A | |
| Shore A hardness (CQP023-1 / ISO 48-4) | 20 | |
| Tensile strength (ASTM D412) | 1.1 MPa (160 psi) | |
| Elongation at break (ASTM D412) | 400 % | |
| Service temperature | -40 ─ 180 °C (-40 ─ 356 °F) | |
| Shelf life | 24 months B |
| CQP = Corporate Quality Procedure | A) 23 °C (73 °F) / 50 % r.h. | B) Stored below 25 °C (77 °F) |
CURE MECHANISM
Sikasil® GP-101 cures by reaction with atmospheric moisture. At low temperatures the water content of the air is generally lower and the curing reaction proceeds somewhat slower (see diagram 1).
Diagram 1: Curing speed Sikasil® GP-101
Application
Surface Preparation
Surfaces must be clean, dry and free from grease, oil and dust. Surface treatment depends on the specific nature of the substrates and is crucial for a long lasting bond.
Application
The optimum temperature for substrate and sealant is between 15 °C and 25 °C (59 °F and 77 °F).
Sikasil® GP-101 can be processed with hand, pneumatic or electric driven piston guns.
Joints must be properly dimensioned. Joints deeper than 15 mm must be avoided.
Tooling and finishing
Tooling and finishing must be carried out within the skin time of the sealant or adhesive. When tooling freshly applied Sikasil® GP-101 press the adhesive to the joint flanks to get a good wetting of the bonding surface. No tooling agents to be used.
Removal
Uncured Sikasil® GP-101 may be removed from tools and equipment with Sika® Remover-208 or another suitable solvent. Once cured, the material can only be removed mechanically.
Hands and exposed skin have to be washed immediately using a suitable industrial hand cleaner and water.
Do not use solvents on skin.
Overpainting
Sikasil® GP-101 cannot be overpainted.
Application Limits
- Sikasil® GP-101 is not suitable for submersible applications.
- Sikasil® GP-101 should not be used on substrates such as marble, concrete, fibrous cement and mortars due to acetic acid.
- Due to staining, Sikasil® GP-101 is not recommended for use on natural stone such as marble, granite, quartzite, etc.
- Sikasil® GP-101 may become discolored if in contact with some organic elastomers such as EPDM, APTK and neoprene.
- Due to corrosion, Sikasil® GP-101 should not be used in contact with metals such as lead, copper, brass or zinc.
- Sikasil® GP-101 is not recommended for structural glazing or use in an aquarium.