Επιφανειακός ιστός από υαλοβάμβακα SAST30-E (30 g/m²)

Το SAXOBRAN® SAST30-E είναι ένα εξαιρετικά λεπτό προστατευτικό πέπλο επιφάνειας που λειτουργεί με απόλυτη ομοιομορφία μάζας 30 g/m². Είναι ειδικά βελτιστοποιημένο για να αντέχει σε ακραίες ενσωματωμένες τάσεις έλξης κατά τη διάρκεια συνεχούς χύτευσης με έλξη.

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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. Utilizing an advanced wet-laid matrix forming technology, it is specifically optimized to withstand extreme inline pulling tension during continuous pultrusion molding. By creating a resin-rich structural outer layer, SAST30-E effectively masks fiber patterns underneath, guarantees an ultra-smooth mirror finish, and delivers exceptional chemical/weather resistance to finished composite profiles.


Eliminating shop-floor micro-defects during high-tension pulling.

Fiberglass

Fiberglass Surface

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.


Fiberglass Surface Tissue

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

Fiberglass

Ultra-Smooth Surface Finish & Masking

Optimized for complex pultruded window frames and fiberglass structural profiles. Eliminates ugly fiber traces and surface grid shadows.

Fiberglass Surface

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.

Fiberglass Surface Tissue

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 ParameterStandard ValueTesting BasisEngineering Purpose
Model CodeSAST30-E-Pultrusion / Continuous Molding Series
Nominal Weight30g/m²ISO 3374Ultra-thin protective veil thickness control
Organic Binder (LOI)≤10%ISO 1887High matrix bonding & thermal stability
Tensile Strength (MD)≥35N/50mmISO 3342High-tension line protection against tearing
Resin Penetrating Time≤10s (2 layers)EN 14118Rapid wetting kinetics to eliminate micro-voids
Moisture Content 0.2%ISO 3344Total 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.


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