LD40 is a two component, CFC & HCFC FREE rigid foam system which when processed through suitable dispense machinery will produce a rigid foam of approximate density 40 kg/m³ with good comprehensive strength, cell structure and other physical properties.
USES
LD40 is a general-purpose system for use in a wide variety of moulding applications where the foam needs gradual rise. LD40 is used in the thermal insulation of large panels, water heaters, storage tanks, refrigerated containers, behind produce store pressure walls and related double skin applications. It is particularly useful for the filling of large volumes where its gradual rise and excellent flow properties are used to best advantage.

EQUIPMENT
LD40 can be processed through all standard foam dispense equipment. The machine should be capable of maintaining the mix ratio at ±2% accuracy and controlling the component temperatures at 20 - 50°C. For small fill quantities LD40 can be mixed manually and poured
COMPONENT DESCRIPTION
LD40 RESIN is a fully formulated liquid mixture. It should be stored in sealed tanks, metal containers or drums.
M27 ISO is a liquid mixture containing crude diphenylmethane diisocyanate. It should be stored in sealed tanks, metal containers or drums.

Mix Ratio by Volume:
100 Parts Resin Part A (Light Amber)
100 Parts Isocyanate Part B (Dark Brown)
Mix Ratio by Weight:    
100 Parts Resin Part A (Light Amber)
109 Parts Isocyanate Part B (Dark Brown)     
Cream Time : 13-18 Seconds
Rise Time : 140-168 Seconds
Rise Ratio : 20/25 : 1 (Poured)

LD40 Foam can free rise up to 20x the original mixing volume in a working environment of 25°C, in lower temperature conditions the free rise ratio will decrease.

Example : 500ml kit is 591g, to mix a full 500ml at once at the correct working temperature of 25°C the foam will free rise to roughly 12 Litres, but if it is not used in the correct working conditions the free rise ratio will decrease.