25g/m² Ultra-Thin Non-Woven Glass Mat for Substrate Reinforcement in PVC Flooring and Decorative Wallpapers
2026-09-30 15:10
1. Technical Overview
SAXOBRAN SAFT25 is a wet-laid non-woven fiberglass flooring tissue engineered for continuous vinyl sheet production and heavy-duty decorative wallpaper lines.
We manufacture this ultra-thin fiberglass tissue as a primary carrier substrate that stabilizes PVC plastisol coatings, cushioned floor backing layers, and non-woven wall coverings.
The light 25g/m² matrix holds exact machine tension under high-temperature PVC gelation ovens up to 200°C.
Factory lines integrate SAFT25 into vinyl sheet flooring and vinyl-faced wall coverings to prevent edge curling, thermal shrinkage, and surface tearing during high-speed lamination.
2. Technical Specifications Table (TDS)
| Technical Parameter | Metric Value | Test Standard | Workshop Function & Purpose |
| Unit Weight (Grammage) | 25 g/m² (±5%) | ISO 3374 | Controls exact fiberglass tissue mass for uniform PVC plastisol penetration |
| Thickness | 0.20 mm | ISO 534 | Low-profile matrix ensures ultra-smooth floor and wallpaper surface finishes |
| Loss on Ignition (LOI) | ≤25% | ISO 1887 | Maintains binder stability inside hot PVC curing tunnels up to 200°C |
| MD Tensile Strength | ≥ 80 N/50mm | ISO 3342 | Prevents web stretching and line snaps under high pull on continuous coating lines |
| CD Tensile Strength | ≥ 50 N/50mm | ISO 3342 | Stops edge tears and width shrinkage during high-speed roll winding and slitting |
| Moisture Content | ≤ 1.0% | ISO 3344 | Prevents steam pinholes, surface bubbles, and delamination during heat curing |
3. Key Features & Workshop Problem Solvers
Stops Floor Sheet Edge Curling and Thermal Shrinkage
PVC cushion flooring and vinyl sheet rolls expand and shrink when exposed to ambient room temperature changes.
SAFT25 fiberglass flooring tissue acts as an internal core stabilizer.
The inorganic glass matrix limits thermal movement to under 0.05%, keeping installed floor sheets lying flat without edge curling or seam gaps.
High Pull Strength Across Hot PVC Gelation Tunnels
Lightweight carrier veils stretch or snap under line pull when passing through high-temperature PVC curing ovens at 200°C.
SAFT25 fiberglass tissue maintains high longitudinal tensile strength (≥ 80 N/50mm).
This high pull resistance prevents web breaks, stops line downtime, and keeps continuous coating processes running clean.
Smooth Surface Finish for Decorative Wallpaper Printing
Rough glass fibers can cause print pattern defects and uneven ink coverage on decorative wallcoverings.
SAFT25 features a smooth 0.20mm thickness profile with ultra-fine fiber distribution.
It creates a flat substrate layer that accepts PVC paste coatings cleanly without print show-through or surface roughness.
4. Target Applications & Processing Lines
PVC Sheet & Cushion Flooring Lines
Flooring plant engineers feed SAFT25 fiberglass flooring tissue into continuous spread-coating lines as the core reinforcement substrate.
The fiberglass tissue absorbs liquid PVC plastisol evenly, Locks dimensional stability between the wear layer and foam backing, and prevents doming on finished vinyl rolls.
Decorative Vinyl Wallpapers & Commercial Wallcoverings
SAFT25 serves as a dimensional backing and face reinforcement layer for commercial PVC wallpapers.
The fiberglass flooring tissue adds flame retardancy, stops moisture-induced wallboard warping, and prevents paper stretching during hanging and pattern alignment.
5. Frequently Asked Questions (Technical FAQ)
Q: How does SAFT25 fiberglass flooring tissue prevent dimensional curling in vinyl sheet flooring?
A: SAFT25 uses a random wet-laid glass fiber structure bonded with a heat-resistant thermosetting binder. Embedded inside the PVC plastisol layer, the fiberglass flooring tissue restricts linear expansion and thermal contraction, keeping finished sheet flooring flat.
Q: Can SAFT25 handle high-speed PVC plastisol reverse-roll coaters without web tearing?
A: Yes. SAFT25 fiberglass tissue delivers a Machine Direction tensile strength of ≥ 80 N/50mm despite its ultra-thin 25g/m² weight. It maintains web tension across high-speed coaters and lamination nip rollers without stretching or edge tearing.
Q: Why is low moisture content (≤ 1.0%) mandatory for SAFT25 on vinyl coating lines?
A: Residual moisture in glass veils vaporizes into steam when contacting liquid PVC plastisol inside 200°C curing ovens. Steam creates internal blisters and surface pinholes.
SAFT25 is delivered sealed at ≤ 1.0% moisture to ensure clean, bubble-free lamination.
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