Bostik STR350A
Bostik STR350A is a multi-purpose adhesive and sealant based on Silyl Modified Polymer (SMP), ideal for elastic constructive bonding and sealing in vehicle assembly. It cures odorlessly and bonds without primer to many substrates.
Bostik STR350A Features:
- Solvent-, isocyanate-, and PVC-free
- Excellent UV resistance and aging performance
- Neutral, odorless curing
Bostik STR350A Applications:
- Bus, caravan, and trailer construction
- Bonding to metals, plastics, glass, and lacquered wood
About Prostech
Prostech Philippines is a one-stop solution provider for specialty materials and equipment across electronics manufacturing, from PCBA to final assembly. Our core material and equipment solutions include:
- PCB Assembly Materials
- Cleaning & Degreaser
- Circuit Board Protection
- Thermal Management Solutions
- EMI Shielding
- General Assembly Adhesives
- Elastomeric Materials
- Process Equipment: Potting & Coating Systems, UV/ Heat Curing, Plasma Treatment, Tape placement automation, and cleaning machines
Technical Added Value to customer
Prostech offers customized material and process equipment solutions with engineering support throughout R&D, production process optimization, and performance validation. Our in-house lab located in Alabang, Muntinlupa is equipped to conduct electronics material testing, application simulation, and adhesive validation, helping customers reduce the need for onsite trials and accelerate implementation.
International Supply Chain Advantage
Regional warehouse hubs across Vietnam, Singapore, Malaysia, and the Philippines ensure cross-border reliable supply. In Philippines PEZA-bonded warehouse located at Lima Industrial Park, Batangas enables Prostech to provide responsive, demand-based delivery and significantly shortens standard lead time for Philippines customers.
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| TYPICAL PHYSICAL PROPERTIES | |
|---|---|
| Basic Material | Silyl Modified Polymer (SMP) |
| Curing Method | Moisture |
| Specific Gravity | 1.5 g/ml |
| Skin Forming Time | 15 min. (70°F/20°C/50% R.H.) |
| Open Time | 20 min. (70°F/20°C/50% R.H.) |
| Curing Speed After 24 hrs | 2 mm (70°F/20°C/50% R.H.) |
| Shore A Hardness | 50 (DIN 53505) |
| Volume Change | < 3% (DIN 52451) |
| Green Strength | 800 Pa (Physica Rheometer MC100) |
| (Max. load which can be applied per m² uncured adhesive without sagging) | |
| Tensile Stress (100%) | 375 psi (DIN 53504/ISO 37) |
| Tensile Strength at Break | 350 psi (DIN 53504/ISO 37) |
| Elongation at Break | 400% (DIN 53504/ISO 37) |
| Shear Strength | 247 psi (DIN 53283/ASTM D1002) |
| (Mu-Alu; adh. thickness 2mm, test speed 50 mm/min.) | |
| Solvent Percentage | 0% |
| Isocyanate Percentage | 0% |
| Temperature Resistance | -40°F to 250°F (-40°C to 121°C) |
| Application Temperature | 41°F to 95°F (5°C to 35°C) |
| UV Resistance | Excellent |
Notes:
- R.H. = Relative Humidity
- SMP = Silyl Modified Polymer
- DIN = Deutsches Institut für Normung (German Institute for Standardization)
- ASTM = American Society for Testing and Materials
- ISO = International Organization for Standardization
