SACT40 Fiberglass Carpet Tissue to Eliminate Tile Curling and Improve Surface Smoothness in Commercial Carpets
2026-11-13 11:05
1. Technical Overview
SACT40 is a wet-laid non-woven fiberglass carpet tissue engineered for continuous PVC, bitumen, and polyurethane carpet tile backing lines.
We manufacture this ultra-smooth fiberglass tissue as an internal dimensional stabilizer that locks tufted primary backings to heavy secondary cushion layers.
The 40g/m² fiber matrix maintains exact web flatness under high-temperature PVC gelation and bitumen curing ovens up to 200°C.
Carpet manufacturing plants feed SACT40 directly into coating lines to prevent carpet tile edge curling, eliminate thermal shrinkage, and ensure a uniform, smooth carpet pile appearance without surface ripples.
2. Technical Specifications Table (TDS)
| Technical Parameter | Metric Value | Test Standard | Workshop Function & Purpose |
| Unit Weight (Grammage) | 40 g/m² (±5%) | ISO 3374 | Controls exact fiberglass tissue mass for uniform PVC plastisol and bitumen saturation |
| LOI | ≤ 25% | ISO 1887 | Maintains binder web integrity inside hot curing ovens up to 200°C without softening |
| MD Tensile Strength | ≥ 120 N/50mm | ISO 3342 | Prevents web stretching and line snaps under high machine pull on continuous coating lines |
| CD Tensile Strength | ≥ 80 N/50mm | ISO 3342 | Stops edge tearing and width necking during wide-web winding and tile die-cutting |
| Wet Tensile Retention (MD) | ≥ 60% | ISO 3342 / Wet | Prevents backing delamination and tile warping during steam cleaning and wet dye processes |
| Moisture Content | ≤ 1.0% | ISO 3344 | Eliminates steam blisters, backing pinholes, and foam voids during hot PVC gelation |
3. Key Features & Workshop Problem Solvers
Locks Carpet Tile Flatness and Stops Edge Curling
PVC and bitumen-backed modular carpet tiles curl at the corners or shrink after installation when exposed to HVAC temperature swings and subfloor moisture.
SACT40 fiberglass carpet tissue acts as an unyielding internal skeleton. The inorganic glass fiber matrix restricts thermal and moisture expansion below 0.05%, keeping die-cut carpet tiles lying flat with tight, invisible seams.
Ultra-Smooth Surface Profile Eliminates Pile Ripples
Uneven non-woven carriers telegraph surface bumps through low-pile loop carpets, ruining the smooth commercial finish. SACT40 fiberglass tissue uses fine, uniformly dispersed E-glass fibers with a flat calendered profile.
It embeds cleanly inside the backing compound without fiber clumps, delivering a smooth, uniform carpet face appearance.
High Wet Tensile Retention Resists Steam Cleaning and Moisture
Standard backing veils lose binder strength when exposed to commercial hot-water extraction cleaning or humid concrete subfloors, causing backing delamination.
SACT40 maintains ≥ 60% Machine Direction tensile strength under wet conditions. This moisture resistance locks the tufted face cloth permanently to the heavy backing layer.
4. Target Applications & Processing Lines
Modular PVC & Bitumen Carpet Tile Backing Lines
Carpet tile factories feed SACT40 fiberglass carpet tissue into continuous spread-coating lines between the primary tufted cloth and the heavy PVC plastisol or modified bitumen backing layer.
The fiberglass tissue saturates rapidly, locks dimensional stability for precision die-cutting, and prevents tile doming.
Tufted Broadloom & Smooth-Surface Commercial Carpets
SACT40 functions as a stabilizing interlayer veil for wall-to-wall commercial broadloom carpets, exhibition carpets, and automotive molded carpets.
The fiberglass carpet tissue prevents stretching during latex or polyurethane pre-coat curing, improves flame retardancy, and ensures smooth, ripple-free floor installation.
5. Frequently Asked Questions (Technical FAQ)
Q: How does SACT40 fiberglass carpet tissue ensure a smooth carpet surface appearance?
A: SACT40 is manufactured using fine E-glass microfibers via a precision wet-laid process that eliminates fiber clumps and thickness variations.
Embedded inside the backing layer, the fiberglass carpet tissue creates a flat, uniform foundation so surface ripples never telegraph through low-pile carpets.
Q: Can SACT40 handle wide-web tension (up to 4000mm) on continuous PVC coating lines without snapping?
A: Yes. SACT40 fiberglass tissue delivers a Machine Direction tensile strength of ≥ 120 N/50mm and Cross Direction strength of ≥ 80 N/50mm. It maintains even cross-web tension across wide coating heads and 200°C curing ovens without necking down or tearing.
Q: Why is high wet tensile retention (≥ 60%) important for commercial carpet tiles?
A: Commercial carpets undergo frequent wet shampooing, steam extraction, and installation over damp concrete slabs. SACT40 uses a water-resistant thermosetting binder that retains ≥ 60% of its dry strength when wet, preventing backing delamination and corner curling over the carpet's service life.
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