Urea-melamine-formaldehyde resin

Ureamelamineformaldehyde resinUMF

Specifications 20.1-33578130-005:2012(grade А, grade B)

The product of urea polycondensation with ureaformaldehyde concentrate and melamine, is an aqueous suspension, non-flammable, non-explosive. The finished product contains 10% of melamine by weight.

UMF resin is produced for its usage in the manufacture of high density fiberboard, chipboard and plywood.

Grade A – is used in the production of high density fiberboard (HDF), chipboard and plywood that meet the requirements for formaldehyde emissions no higher than the grade of E-1.

Grade B – is used in the production of high density fiberboard (HDF), chipboard and plywood, with low formaldehyde emission corresponding to the class of ½E-1, E-0.

 

 

Physical and chemical properties of UMF resin

№ n/o

Indicator

Norm

Grade А

Grade B
1 Appearance Homogeneous white suspension without mechanica inclusions1)
2 Density at 200 С, g/sm3 1,280+0,005
3 Mass fraction of solids, %, at 1200С 65,00+1,00
4 Mass fraction of free formaldehyde, % 0,10+0,01 0,06+0,01
5 Brookfield dynamic viscosity, MPа·с2) 350+100 250-500
6 Conventional viscosity for viscometersВЗ-246 with nozzle (4,0000,015) mm, s 40-80 30-70
7 Concentration of hydrogen ions, unitsрН 9,0±0,5
8 Jell time at 1000С, с2) 70+10 not less 70
9 Limitsofwatertolerance, at which there is coagulation, by volume, not less 1,2 1,0
1- contamination means any foreign objects that might fall into the mixture reaction or finished products at all stages of loading bulk materials, dispensing, and undissolved granules of urea, MUF resin as polymer granules with diameters more than 0.5 mm

2 – indicator 5 is optional and is determined only at the request of the consumer.

 

 

Guaranteed shelflife ofUMF resin – 45 days from date of its producing at a temperature of 50С- 250С.

UMF resin is stored in clean closed tanks, protected from sun raises affect and atmospheric condensation, stirring periodically.

Shipment of Goods is made by road or rail tanks.