When specifying office carpet tiles (方块地毯 / 50×50cm modular carpet) or cushion vinyl sheet flooring (缓冲地板 / PVC sheet) in green-certified workplaces, the adhesive is just as critical as the floor covering itself. KONISHI BOND FL200 — produced by KONISHI Co., Ltd. (小西株式会社, est. 1870, Japan) — is a water-based acrylic emulsion flooring adhesive purpose-built for commercial carpet tile installation, broadloom carpet, and resilient cushion floor bonding, delivering Japanese F★★★★ (F4-Star) ultra-low formaldehyde performance with extended open time for professional trowel or roller application.
1. Product Identity — KONISHI BOND FL200 (ボンド FL200)
Label translations & key markings explained:
- ボンド FL200 / BOND FL200 — KONISHI “Bond” series acrylic emulsion adhesive for floor coverings
- アクリルエマルジョン系床材用接着剤 — Water-based acrylic emulsion flooring adhesive (non-solvent, non-flammable)
- クッションフロア・カーペット用 — For cushion vinyl flooring, PVC sheet, broadloom carpet & office carpet tiles
- F★★★★ (F4 Star) — Japan’s highest indoor air quality standard; formaldehyde emission ≤0.3 mg/L — near zero
- 4VOC対策品 — Compliant with Japan’s 4-VOC low-emission guideline; excludes 13 designated harmful substances
- FULL OPENING TYPE — Extended open time (~40 min); allows repositioning during large-area layout
- NET 3kg / 業務用 — 3 kg contractor-size pail; 6 pails/ctn (18 kg); also available in 1 kg DIY pack
- 凍結厳禁 2–40℃で保管 — Do not freeze; store @ 2–40°C
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2. Technical Specifications
| Item | Specification |
|---|---|
| Base Resin | Water-based acrylic emulsion (水系アクリルエマルジョン) — solvent-free, low odor |
| Appearance | Milky white viscous liquid (dries translucent) |
| Coverage Rate | Approx. 200–300 g/m² (depending on substrate porosity & trowel notch) |
| Open Time | ~40 minutes @ 23°C / 50% RH (Full Opening Type) |
| Initial Tack | Medium-fast grab; final bond strength develops as moisture evaporates |
| Shelf Life | 12 months in unopened original container, stored cool & shaded |
| Pack Size | 3 kg (contractor), 1 kg (DIY/home); 6 pails/box = 18 kg |
| Certifications | JAIA F★★★★, 4VOC-compliant, contains 0 of Japan MHLW’s 13 regulated hazardous substances |
3. Recommended Substrates & Applications
✅ Suitable Floor Coverings
- Commercial carpet tiles (nylon / PP 方块地毯) — especially 500×500mm office modules with PVC / PU / bitumen back
- Broadloom / wall-to-wall carpet — woven & tufted varieties
- Cushion vinyl flooring / PVC sheet (クッションフロア) — residential & light commercial grade
- Resilient sheet goods — compatible with most homogeneous/heterogeneous vinyl where wet-set adhesion is preferred
✅ Suitable Subfloor Types
- Cement screed / concrete slab (properly cured & moisture-tested)
- Plywood / OSB overlay (interior, dry condition)
- Wood-composite substrate (e.g. raised access floor panels — note: test compatibility on bitumen-backed tiles)
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4. Five Advantages for Office & Premium Residential Projects
🌿 Ultra-Low Emission — F★★★★ + 4VOC Dual Certified
No added formaldehyde, no benzene/toluene/xylene. Exceeds most national E1/E0 standards — ideal for LEED / WELL / CASBEE green office projects, nurseries, and allergy-sensitive occupants. No strong solvent odor; usable same-day post-install in well-ventilated spaces.
💪 Reliable Initial Grab + Elastic Bond
Forms a flexible adhesive film after cure — accommodates minor thermal expansion of PVC cushion flooring and prevents edge lift / tenting of carpet tiles, even under rolling office chairs.
🔧 Professional Workability — Thixotropic Formula
Excellent trowelability with A2/A3 notched trowel or short-nap roller; minimal splatter, no dripping on vertical edges. Extended open time supports large-room layout before setting.
💦 Water-Cleanable Before Cure
Uncured adhesive and tools wash off with plain water — no flammable thinners required on site.
🏢 Contractor-Friendly Packaging
3 kg trade pack sized for typical daily coverage (~10–12 m²/pail depending on substrate). Suitable for corporate HQ carpet tile fit-outs, co-working spaces, hotel guestroom broadloom, and premium home cinema/media room carpet.
5. Application Tips for Office Carpet Tile Installation
- Subfloor Prep — Ensure substrate is clean, dry, level, and free of laitance or old adhesive residues. Moisture content of concrete should comply with floor covering mfgr’s limit (typically <75% RH / <3% CM).
- Spread Evenly — Apply with notched trowel to achieve uniform 200–300 g/m² coverage. Avoid pooling.
- Flash / Open Time — Allow brief open time if specified; for FL200’s FULL OPENING TYPE, you have ~40 min to position & adjust.
- Press & Roll — After positioning carpet tile / vinyl sheet, press firmly or use a carpet roller (≈30–50 kg) to ensure full contact and air evacuation.
- Curing — Foot traffic OK after adhesive is touch-dry; full cure typically within 24–48 h depending on humidity/temp.
KONISHI BOND FL200 — The invisible foundation of a healthy, durable office floor.
Pair it with premium commercial carpet tiles or cushion vinyl flooring to complete a low-emission, high-performance workspace that meets today’s green building standards.
