Why switch to water based adhesives ?
Water based adhesives is being increasingly used to replace solvent based glues. Why?
- Safer for workers — Supex 309 releases zero VOCs and no toxic fumes. You avoid health risks like respiratory issues and headaches common with solvent cements.
- No fire hazard — It stays non-flammable. You eliminate explosion risks in factories and cut insurance costs.
- Odour-free workplace — No strong chemical smell. Teams work comfortably, stay productive, and face fewer absences.
- Eco-friendly & compliant — Zero VOCs mean lower environmental impact. You meet REACH standards and green regulations easily.
- Instant grip & fast production — Excellent wet tack gives quick initial bonding. You speed up assembly lines and reduce waiting time.
- Strong, flexible bonds — High peel strength and heat resistance (up to 80°C). Bonds stay durable and move with materials like foam without cracking.
- Less waste & cost savings — Even spray/roller application cuts overspray. You save on material, cleanup (just water), and rejected pieces.
- Versatile & easy to use — Bonds leather, foam, rexine, PVC, fabric, and more. Apply via spray, brush, or roll without special ventilation.
Switch to Supex 309 for safer, greener, and more efficient operations without losing performance.
Cost Comparison of Water based rubber adhesive VS solvent based cement
Here’s a clear cost comparison table between water-based rubber adhesives (e.g., Supex 309) and solvent-based rubber contact adhesives (typical for foam, mattress, upholstery in India). Data draws from 2025–2026 market trends (IndiaMART, supplier listings, industry reports). Prices are approximate bulk/industrial rates in ₹ (per kg or litre equivalent; 50L barrels common). Focus on total cost of ownership (TCO), as water-based often delivers net savings.
| Aspect | Water-Based (e.g., Supex 309) | Solvent-Based Contact Cement | Key Notes / Winner |
|---|---|---|---|
| Material Price (per kg/litre, bulk) | ₹600–₹675 (e.g., ₹675/50kg piece ~₹13–14/kg effective) | ₹130–₹350 (common ₹160–₹250 for foam/mattress grades) | Solvent-based lower upfront; Water-based higher unit price |
| Usage Quantity per Application | 30–50% less (higher solids, efficient spread) | Higher (more overspray, lower efficiency) | Water-based saves material → Water-based |
| Cleanup Cost | Water only (near zero) | Toxic thinners/solvents (₹5k–₹20k+/month) | Major savings → Water-based |
| Energy & Equipment | No explosion-proof setup; less ventilation/drying | High ventilation, potential ovens → higher bills | Lower ops cost → Water-based |
| Safety & Compliance | Zero VOCs; lower insurance, health claims, fines | VOC regulations, higher PPE/insurance | Reduced hidden costs → Water-based |
| Production Efficiency | Faster cleanup/setup; safer environment boosts output | Slower due to fumes/ventilation needs | 10–30% potential gain → Water-based |
| Total Cost of Ownership (6+ months) | Often 15–50% lower overall | Higher long-term due to extras | Water-based wins on TCO |
Verdict: Solvent-based adhesives look cheaper initially (lower per-kg price), but water-based like Supex 309 save significantly on material use, cleanup, energy, safety, and compliance. Many Indian manufacturers (foam/mattress sector) report net savings after 3–6 months.
Uses of Water based rubber glue, Supex 309
Here are the main uses of water-based rubber adhesives like Supex 309. It excels in flexible, porous, and multi-material bonding for Indian industries.
- Mattress manufacturing — Bonds foam-to-foam layers, bonded foam, and fabric covers for durable, soft comfort layers.
- Upholstery & furniture — Joins foam, fabric, rexine, leather, and wood in sofas, chairs, and cushions.
- Footwear production — Attaches soles, insoles, linings, and uppers (especially leather/rubber combinations).
- Leather goods — Bonds leather for bags, wallets, belts, accessories, and fashion items.
- Automotive interiors — Glues seats, trims, foam padding, and fabric/leather covers.
- General assembly — Bonds PVC, rubber, non-wovens, polyester/cotton fiber, cardboard, jute, and porous plastics.
- Multi-material lines — Works across foam, fabric, leather, vinyl, and wood where flexibility and instant grip matter.
Supex 309 suits spray, brush, or roller application. It provides strong, heat-resistant (up to 80°C), flexible bonds without solvents.
Technical Specifications of Supex 309
Technical data
Appearance Milky: White
Viscosity mpa.s (25℃) : 130±50
Density (g/ml): 1.00-1.06
Solid content（%）: 42-52
Heat resistant: 80℃
180°peel strengt(kN/m): 1.5-2.0
Opentime: 5-15 min
PH Value: 8-10
Shelf Life:
At temperatures +5°C…+30°C, in unopened original packaging 6 month
Features:
Minimal overspray, very high initial adhesive strength immediately after spraying
without additional drying time, high heat resistance, solvent-free, no hazards, high solid content, non flammable
Water based adhesives Application process:
Double sides sprayed with the distance of 0.2m between the spray gun and target materials, it usually takes 24 hours to cure