Blend Polyol for PU Moulding and Casting

• Molecular Principal Chain: Naphthenic Polymer
• Color: Brown
• Nco, %: 30-32
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: DFR4 Series
• Compressive Strength,MPa: 10-20
• Oh Content, Mgkoh/G: 35-50
• Transport Package: Steel Drum/IBC Drum/Tank
• Specification: pure
• Trademark: G-TECH@
• Origin: China
• Production Capacity: 50000mt/Year
• Package Size: 60.00cm * 60.00cm * 102.00cm
• Package Gross Weight: 218.000kg

Product Description

Blend Polyol DFR4 Series for PU Moulding and Casting

DFR4 Series rigid filling foam system is a two part polyurethane system comprises a polyol and isocyanate component..When mixed in their correct proportions produce a fine-celled foam with a free rise density, 450±50 kg/m3.

The system is designed for use in moulding applications where good skin is required. The foam can be used for moulding components such as imitation wood and cavity casting.

The system can be manually drill mixed (@ a minimum speed 2000 rpm) however it is best

processed through high-pressure plural polyurethane dispensing equipment.

 

COMPONENT PROPERTIES

Item	POLYOL	ISOCYANATE
Apperance	Clear amber liquid	Dark brown viscous liquid
Viscosity@25ºC,cps	500±100	150-250
Specific gravity@20ºC, mPa.S	1.05±0.02	1.26-1.25
OH content, mgKOH/g	35-50
NCO, %		30-32

 

REACTION PROFILE

Laboratory results based on hand-mix @ 20°C

FOAM PERFORMANCE

ITEM	PROPERTY
Moulded Density,kg/M3	500-1000
Compressive strength,Mpa	10-20
Surface strength,Shore A	70±5
Cohesiveness/Adhesion Strength	well

 

STORAGE CONDITIONS AND HANDLING

The components are sensitive to humidity and should at all times be stored in sealed drums. The recommended storage temperatures are 18-25 C, which will give a normal shelf life of 3 months.At elevated temperatures problems may arise with pressure build-up within the drums. When opening these drums extreme care must be exercised in releasing the internal pressure. It is recommended that the drum contents should be mixed well before use.

HEALTH AND PERSONAL PROTECTION

Before handling these chemicals please consult the Material Safety Data Sheets for the two

components. The polyol component contains tertiary amines. Contact with the skin or eyes must be avoided. Safety goggles and protective gloves should be worn whenever handling both of the chemicals. Splashes that come into contact with the skin must be wiped off immediately and the contaminated area washed with soap and water. Splashes in the eye must be flushed immediately with plenty of clean running water. If irritation occurs thereafter contact an eye specialist.

GENERAL INFORMATION

At temperatures less than 15 C the reaction rate of Blend Polyol DFR4 Series will be much slower resulting in an increase in density, and reduction in foam yield. Also at temperatures above 30 C the cream time will be drastically reduced.