Overview
Imported water-blown closed-cell spray polyurethane foam systems supplied as matched polyol and isocyanate drum sets, for professional applicators running Graco E-20-class or higher high-pressure rigs.
Polyol and isocyanate are supplied only as matched sets. Coverage is pure arithmetic from sprayed density — kilograms per square metre equals density multiplied by thickness, plus a wastage allowance — so a job can be costed to the drum before mobilisation.
Technical Specifications
| Property | Value |
|---|---|
| System type | Water-blown premix polyol + polymeric MDI isocyanate, matched set |
| Origin | Japan / Korea — imported spec grade |
| Mix ratio | 1:1 by volume (100/100), or 100–110/100 by weight per system TDS |
| Free-rise density | 26 ± 2 to 40 ± 2 kg/m³ depending on grade |
| Recommended sprayed density | 35–38 kg/m³ in place |
| Thermal conductivity | 25.2–25.3 mW/m·K |
| Compressive strength | 0.72–0.87 kgf/cm² |
| Reactivity (cream / tack-free) | 2–5 s / 6–23 s depending on grade |
| Fire retardant | Included in the blend; certificates issued with the qualified system |
| Pack size | 200 kg drums (400 kg set) or 220 kg drums (440 kg set) |
| Shelf life | 6–7 months from date of manufacture |
| Coverage per set at 50 mm | 188 m² (400 kg set) / 207 m² (440 kg set), at 38 kg/m³ with 12% wastage |
| Coverage per set at 80 mm | 117 m² (400 kg set) / 129 m² (440 kg set) |
| Machine requirement | Graco Reactor E-20 class or higher; ≥82 bar, heater and hose 43–52 °C |
Coverage Planning
| Applied thickness | Chemical incl. 12% wastage | Coverage per 400 kg set | Coverage per 440 kg set |
|---|---|---|---|
| 50 mm | 2.13 kg/m² | 188 m² | 207 m² |
| 80 mm | 3.40 kg/m² | 117 m² | 129 m² |
| 100 mm | 4.26 kg/m² | 94 m² | 103 m² |
Figures at 38 kg/m³ in-place density. Verify yield on your own rig by site trial rather than from free-rise TDS figures alone.
Applications
- Warehouse, factory and PEB metal roof insulation
- Cold storage and cold room walls, floors and vapour sealing
- Poultry and dairy shed roofs
- Terrace and roof heat-proofing under a UV top coat
- Tank, vessel and pipework cold insulation
Handling & Storage
- Store shaded and ventilated at 15–35 °C; precondition drums to ≥27 °C for 24–48 hours before cold-weather use, with band heaters below 15 °C
- Keep isocyanate drums sealed; re-seal with a dry nitrogen blanket once opened, as MDI reacts with atmospheric moisture to form crust and pressure
- Agitate polyol before use; the blend carries surfactant and catalyst that can stratify
- Strict FIFO rotation by drum date against the 6-month shelf life
- Supplied-air respirators mandatory for all spraying; segregate isocyanate and polyol storage zones and keep a spill kit on site
Import lead time is approximately 6 weeks. Order against a 6-week pipeline and hold no more than 4 months’ consumption against the 6-month shelf life.
Why buy from Wedge Industries Limited
- Specification-grade imported system with published thermal, density and reactivity data for U-value guarantees to industrial and cold-chain clients
- Supervised application trials available before you commit to a system
- Backed by a locally blended second source so a delayed shipment does not stop your committed jobs
- Manufacturing and sourcing bases in India, UK, Spain and China; exports to 45+ countries
- Gun spares, mix chambers, seals and screens held alongside chemical stock
- Applicator training and QC protocol available — thickness mapping, density coupons and batch records
- Export documentation and HS-code support through our sister consultancy, ZJELL Limited
Frequently Asked Questions
How much area does one drum set cover?
At 38 kg/m³ sprayed density with a 12% wastage allowance, a 400 kg set covers approximately 188 m² at 50 mm, 117 m² at 80 mm and 94 m² at 100 mm. A 440 kg set covers approximately 207 m² at 50 mm.
Is this a water-blown system?
Yes. Water-blown chemistry is supplied as the default because HFC-245fa and HFC-365 blowing agents face quota restriction and a 2040 phase-out. Water-blown systems carry a slightly higher k-value but are the future-proof specification.
What machine do I need to run it?
A Graco Reactor E-20 class or higher electric high-pressure proportioner with heated hose and impingement gun. Set pressure at or above 82 bar balanced within 10% between A and B sides, with primary heater and hose at 43–52 °C.
What is the shelf life and how should it be stored?
Six to seven months from manufacture. Store shaded and ventilated at 15–35 °C, keep isocyanate sealed under a dry nitrogen blanket once opened, agitate polyol before use, and rotate stock strictly first-in-first-out by drum date.
Do you sell to independent applicators?
Yes. Wedge Industries Limited supplies matched drum sets to partner applicators across India, with gun spares, mix chambers and technical support. Density-coupon checks apply on jobs where co-branding is used.
Is the isocyanate sold separately?
No — matched sets only. Pairing a polyol with an unqualified isocyanate voids all published performance data and is the most common cause of soft, friable foam on site.
Pricing
Drum-set pricing moves with isocyanate and polyol feedstock and with the rupee, so rates are quoted live rather than listed. Request a current applicator rate in ₹ per kg and $ per kg, stating annual tonnage, pack preference (drums, IBC or tote) and delivery location. Standing-order applicators are priced against contracted monthly volume. See also our spray foam insulation application service.
