SAST30-E Fiberglass Surface Tissue (30 g/m²)
SAXOBRAN® SAST30-E is an ultra-thin protective surfacing veil running at an absolute mass uniformity of 30 g/m². It is specifically optimized to withstand extreme inline pulling tension during continuous pultrusion molding.
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SAST30-E Fiberglass Surface Tissue (30 g/m²)
Engineered Specifically for High-Speed Continuous Pultrusion & Profile Edge Durability.
SAXOBRAN® SAST30-E is an ultra-thin protective surfacing veil running at an absolute mass uniformity of 30 g/m²
Eliminating shop-floor micro-defects during high-tension pulling.
Fabric Tearing on High-Speed Lines
Ordinary thin tissues exhibit low wet tensile strength, leading to frequent web breaks under continuous pultrusion tension.
SAST30-E features specialized binder chemistry that elevates cross-direction and machine-direction tensile limits (MD ≥35 N/50mm), ensuring zero tearing during steady pulling.
Gel-Coat Micro-Voids & Osmotic Blistering
Poor resin wet-out leaves air pockets trapped behind the surface layer, leading to surface cracking and moisture penetration over time.
Formulated with instant-wetting fibers, achieving a resin penetration time of less than 10 seconds (per two layers under EN 14118) for a completely void-free chemical liner barrier
.
Engineered Characteristics
Ultra-Smooth Surface Finish & Masking
Optimized for complex pultruded window frames and fiberglass structural profiles
Outstanding Resin Affinity & Fast Wet-Out
Maintains a strict, low organic binder percentage (≤10%). Accelerates chemical wetting kinetics, forming an impenetrable, crack-resistant outer layer
Perfect Dimensional Rigidity
Maintains high mechanical profile stability under continuous thermal loading inside the pultrusion die, preventing warping, shifting, or structural spring-back
Technical Data Sheet
| Technical Parameter | Standard Value | Testing Basis | Engineering Purpose |
| Model Code | SAST30-E | - | Pultrusion / Continuous Molding Series |
| Nominal Weight | 30g/m² | ISO 3374 | Ultra-thin protective veil thickness control |
| Organic Binder (LOI) | ≤10% | ISO 1887 | High matrix bonding & thermal stability |
| Tensile Strength (MD) | ≥35N/50mm | ISO 3342 | High-tension line protection against tearing |
| Resin Penetrating Time | ≤10s (2 layers) | EN 14118 | Rapid wetting kinetics to eliminate micro-voids |
| Moisture Content | ≤ 0.2% | ISO 3344 | Total prevention of bubble defects during curing |
Specialized Warehouse & Environmental Management
1
Temperature Range
Kept strictly between 5°C and 35°C to prevent any organic binder aging or breakdown.
2
Humidity Limits
Stabilized accurately within 35% to 65% RH to eliminate moisture absorption risks.
3
Stacking Security
Pallets must never exceed 2 layers high to protect rolls from compression deformation.
Global Supply Chain Securement
Roll & Core Construction: Wound on heavy-duty, reinforced 76mm (3-inch) industrial paper cores.
Sealed Barrier Packaging: Each roll is 100% airtight sealed in moisture-proof PE stretch plastic film.
Anti-Shifting Loading: Palletized goods are locked in shipping containers utilizing specialized heavy-duty dunnage airbags, lashing straps, and wooden bracing to guarantee zero movement during rough sea transit.
Technical Q&A
Q: Why is SAST30-E better suited for pultrusion than standard hand lay-up tissues?
A: Standard tissues (like SAST30-H) prioritize soft mold conformance for manual layouts. SAST30-E is engineered with high-tensile stiffeners and a low, calibrated binder structure specifically to withstand the continuous pulling friction of heated metal dies without bunching or fracturing
.
Q: How does this model guarantee zero fiber print-through on long profiles?
A: By maintaining an exceptionally uniform wet-laid fiber distribution (30g/m² \pm±minimal deviation)
, it acts as a high-density blocking layer that traps coarse fiberglass structural fibers beneath it, locking resin on the surface for a pristine coat.
Q: What is the shelf life under appropriate factory storage?
A: When kept inside its original unopened PE film wrapping under recommended conditions (5°C-35°C, humidity <65%), SAST30-E maintains its full wet strength retention and rapid wetting capabilities for up to 12 months from the production date.