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E1 is a powder urea formaldehyde resin soluble in water, suitable for any kind of wood gluing when used with hardener. E1 is characterized by a high degree of purity and a very low dispersion of free formaldehyde during pressing.

 

Parameter Value Unit

Appearance

White free flowing powder

 

pH (1:1) at 20 0C

8.0 – 9.0

pH units

Humidity

1.5 max

%

Free formaldehyde

< 0.3

%

Gel time (1:1) at 1000

Using 3 % NH4CL (20%)

100 max

sec

Viscosity (2:1) at 200C

1500 max

cps

Type Quantity

E1

100 Parts by weight.

Water

100 Parts by weight.

*Flour

25 Parts by weight.

** Hardener

0.25 Parts by weight.

 

Dissolving the resin:-

1)Take all water*** in the mixer****.

2) Add required amount of E1 and mix until a homogenous solution is obtained.

3) Other additives and hardener are added.

*  Flour is added in case of gluing veneer to plywood

**The hardener quantity depends on pressing conditions like temperature, timing,pressure and thickness.

*** Water temperature should be 20 – 30 0C because with lower temperature mixing Water temperature should be 20 – 30 0C because with lower temperature mixing .

****A mechanical stirrer may be used for this purpose With high speed mixer all the water may be placed first and then resin may be  added, while mixer is running.

With low speed mixer, it is better to make a homogenous mix of the resin with about 2/ 3 of water, and rest of the water may be added later.

 

  • Very good adhesives for wooden materials.
  • Wide variety of end uses such as wood-based panels, furniture, load – bearing constructions and wooden building products.

 

Packing:
  • 25 Kgs.nett laminated polyethylene bags.
Handling:
  • Like any formaldehyde product, E1 contains free formaldehyde.This may cause dermatitis, when it comes into contact with skin of sensitive persons. Skin contact with powder should be avoided.Hands should be thoroughly washed with soap and hot water at the end of the working day and before meals. A dust mask should be  worn, while emptying the bags.
Storage:
  • The powder should be stored in the original bags in a cool place . protected from heat. Care should be taken that powder doesn't absorb moisture and water. The bags which have been opened should be  carefully closed before storage. When stored in original bags at 200C shelf life would not be less than one year.