100% Original Castable Polyurethane Shoe Upper Prepolymer - Donspray 501 water base blend polyols – INOV
100% Original Castable Polyurethane Shoe Upper Prepolymer - Donspray 501 water base blend polyols – INOV Detail:
Donspray 501 water base blend polyols
INTRODUCTION
DonSpray 501 is a two-components, spray-applied, open-cell polyurethane foam system. This product is fully water-blown
foam system with good performances of low density ( 8~10kg/m3), open cell and fire resistance Class B3.
During spray process in site, the breathing small open cell filled with air, without producing toxic gas to destroy the Ozone
layer( traditional blowing agent: F-11, HCFC-141B), which is environment friendly, low-carbon new construction materials.
With highly performance of thermal insulation, moisture & vapor barrier, air barrier, sound absorption, PU foam can give us a
quieter, more energy saving buildings leading us to a healthier life.
PHYSICAL PROPERTY
Description |
DD-44V20 |
DonSpray 501 |
Appearance Hydroxyl value Viscosity Specific gravity Storage Stability |
Brown liquid N/A 200-250 mPa.S/20℃(68℉) 1.20-1.25 g/ml (20℃(68℉)) 12 months |
Light yellow to brown transparent liquid 100-200 mgKOH/g 200-300 mPa.S/20℃(68℉) 1.05-1.10 g/ml (20℃(68℉)) 6 months |
REACTIVITY PROPERTIES (Material temperature: 20℃(68℉) , the actual value varied as per processing condition)
POL/ISO RatioCream Time
Gel Time Free Density |
by volumeS
S kg/m3(lb/ft3) |
1/13-5
6-10 7-9 (0.45-0.55lb/ft3) |
IN-PLACE FOAM PERFORMANCES
Items | Metric Unit | Imperial Unit | ||
Spray Density Compressive Strength K-Factor(Initial R Value) Tensile Strength Open-cell Rate Sound Absorption Rate (800Hz-6300Hz, average) Dimensional Stability -30℃*24h 80℃*48h 70℃*95%RH*48h Water Vapor Permeability Oxygen Index |
GB/T6343-2009 GB/T8813-2008 GB/T10295-2008 GB/T 9641-1988 GB/T10799-2008 GB/T18696-2-2002 GB 8811-2008 QB/T 2411-1998 GB/T 2406-1993 |
8~12kg/m3 ≥13KPa ≤40mW/(m.K) ≥33KPa ≥99% 0.43% 0.1% 0.9% 2.4% 793 |
ASTM D 1622 ASTM D 1621 ASTM C 518 ASTM D 1623 ASTM D 1940 ISO10534-2 ASTM D 2126 ASTM E 96 ASTM D 2863-13 |
≥0.60 ≥1.80PSI ≥3.60/inch ≥4.80PSI ≥99% 0.43% 0.1% 0.9% 2.4% 14.41 22.5% |
Product detail pictures:

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"Quality to start with, Honesty as base, Sincere company and mutual profit" is our idea, as a way to build constantly and pursue the excellence for 100% Original Castable Polyurethane Shoe Upper Prepolymer - Donspray 501 water base blend polyols – INOV , The product will supply to all over the world, such as: Pakistan, Switzerland, Slovenia, Our products are mainly exported to Europe, Africa, America, the Middle East and Southeast Asia and other countries and regions. We have enjoyed a great reputation among our customers for quality products and good services.We would make friends with businessmen from at home and abroad, following the purpose of "Quality First, Reputation First, the Best Services."

The company account manager has a wealth of industry knowledge and experience, he could provide appropriate program according our needs and speak English fluently.
