TISSU DE SURFACE EN FIBRE DE VERRE SAST25-W (25 g/m²)
Les papiers de soie standard de 25 g/m² se déchirent sous la tension d'un enroulement rapide et laissent des microbulles dans les gaines internes des tubes. Le SAST25-W associe une matrice en fibre de verre E haute résistance à la traction à une dissolution rapide du liant acrylique pour maintenir votre ligne d'enroulement à vitesse maximale sans micro-perforations dans les gaines.
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les catégories de produit
- - Matériau en fibre de quartz
- - Fibre d'aramide
- - Fibre Polyimide
- - Fibre de carbone
- - Fibre de basalte
- - Fibre PPS
- - Voile en fibre de carbone
- - Voile de fibre PPS
- - Voile en fibre de verre
- - Fibre de carbone nickelée
- - Voile de fibre de basalte
- - Polyimide non tissé
- - tissu non tissé humide
- - fibre de carbone
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SAST25-W FIBERGLASS SURFACE TISSUE (25g/m²)
Stops High-Speed Line Snaps. Ultra-Fast Wet-Out.
SAXOBRAN® Our team designed SAST25-W because we saw pipe plants stop continuous winding lines when ultra-light veils snapped on mandrels. We found that standard 25g/m² tissues tear under fast winding tension and leave micro-bubbles in pipe inner liners. SAST25-W combines a high-tensile E-glass matrix with fast acrylic binder dissolution to keep your winding line running at max speed without liner pinholes.
Industrial Pain Points Solved
High-Speed Web Snapping on Rotating Mandrels
Fast continuous winding creates strong drag on lightweight tissue rolls. Weak 25g/m² veils snap at high RPM, forcing line shutdowns, manual re-threading, and costly pipe scrap.
Engineered with high Machine Direction tensile strength (≥20 N/50mm).Holds steady pull tension on fast mandrels without edge fraying, tearing, or snapping.
Liner Pinholes and Osmotic Pipe Blistering
Slow resin soak leaves tiny air bubbles inside the smooth inner corrosion liner. Chemical fluids penetrate these dry spots under pipe pressure, causing liner blisters and leaks.
Features an open wet-laid glass layout that wets out completely in under 8 seconds. Forces trapped air out instantly to create an airtight, resin-rich corrosion barrier.
Engineered Characteristics
Resin-Rich Inner Liner Shield
Forms a smooth, dense inner surface layer that masks structural glass fibers and stops chemical penetration.
Rapid Styrene Wet-Out
Absorbs polyester and vinyl ester resins in seconds, eliminating air pockets on high-speed winding heads.
Zero-Fray High-Tension Pull
Pulls straight off tension feed rollers without web curling, tearing, or fiber fuzz buildup.
Technical Specifications Table
| Technical Parameter | Standard Value | Testing Basis | Engineering Purpose |
| Area Weight (Grammage) | 25 g/m² (±5%) | ISO 3374 | Maintains an exact, lightweight resin balance inside the pipe liner |
| MD Tensile Strength | ≥20 N/50mm | ISO 3342 | Prevents web snaps under high-speed continuous mandrel winding drag |
| CD Tensile Strength | ≥10 N/50mm | ISO 3342 | Stops edge splitting when resin bath rollers press tissue against the pipe wall |
| Resin Wet-Out Time | ≤8 seconds | ISO 3374 (modified) | Guarantees instant resin saturation to stop trapped air voids on fast lines |
| Moisture Content | ≤0.5% | ISO 3344 | Prevents steam micro-bubbles from forming inside cured resin liners |
| Binder Content | 6.0% - 9.0% | ISO 1887 | Dissolves fast in liquid resin while holding high dry roll pull strength |
Processing, Packaging & Logistics Quality
1
Temperature Range
Store rolls inside clean, dry rooms kept between 10°C and 30°C.
2
Humidity Limits
Maintain relative humidity below 65% so binders do not absorb air moisture.
3
Stacking Security
Do not stack rolls more than 2 layers high to protect paper cores from crushing.
Global Supply Chain Securement
Roll & Core Construction: Rolled tight on heavy-duty 3-inch solid paper cores to prevent core collapse.
Sealed Barrier Packaging: Wrapped in thick, heat-sealed PE film to block sea salt and moisture during shipping.
Anti-Shifting Loading: Secured on sturdy export pallets with protective edge boards and nylon strapping.
Technical Q&A
Q: What is the fundamental difference in design logic between this model and the standard or general-purpose models within this category?
A: Standard 25g/m² surface tissues are made for slow hand lay-up or flat panel press molds. SAST25-W is engineered specifically for high-speed continuous filament winding pipelines. It uses a high-tensile glass binder formulation that gives higher pull strength at an ultra-light weight, preventing the web snaps and liner pinholes common on high-RPM mandrel lines.
Q: In actual operations involving pipelines engineered for high-speed continuous filament winding, how should this model be utilized to achieve optimal performance?
A: Set your unwinding roll tensioners to maintain even, steady pull across the tissue width. Keep your resin bath temperature around 25°C to 30°C so the binder dissolves instantly as SAST25-W touches the mandrel. Ensure squeegee rollers press out all micro-air bubbles before structural glass winding begins.
Q: What are the shelf life and storage limitations after opening the original packaging?
A: Once you cut open the PE film seal, use the roll within 24 hours. Ultra-light 25g/m² glass tissue draws moisture from humid workshop air fast. If tissue moisture goes above 0.15%, resin bonding drops and steam micro-voids form inside your pipe liner during heat cure. Always wrap unused rolls back in original PE film.