Urea Formaldehyde Powder Resin

 

UFP1001 Powder plant 1

Advantages

 UFP 1001 powder resin developed from liquid Urea Formaldehyde Resin /UFR. UFP1001 is easy to transport and has  storage life up to 9 months unlike UFR liquid only last for less than 1 month. It is very suitable when production are not predictable. 

UFP1001 Application For Plywood manufacturing

UFP 1001 is specially formulated for the manufacture interior grade plywood. When used correctly, it has an excellent pre-pressing characteristic with a resulting bond that is highly resistant to moisture, molding and staining; Optimum bond quality could comply with the following international plywood Standards.

British Standard	:	BS 1455, 1972- Moisture Resistant Grade (Knife Test).
	:	BS 6566, Part 8, 1985- Moisture Resistant Grade (Shear Test)
Japanese Agricultural Standard	:	JAS. Type II
United States Commercial Standard	:	CS-35, Type II

 

UFP 1001 also possible to be used in the assembly of high-grade furniture, edge gluing, doweling, finger jointing and other similar woodworking operations. It could also be successfully adapted for the manufacture of particleboard and the overlaying of decorative paper/veneer on particleboard / plywood.

Resin Specification
Appearance	:	White powder
Gel time @ 30C	:	20-60 mins (100 g resin + 50 g water +0,5g NH4 CL)
Storage Life @ 30°C	:	Approx. 10 months.

Storage :
Store UFP 1001 in a cool dry place away from direct sunlight. Heat and moisture will cause the powder to harden whence it becomes useless.
In cases where there is leftover powder, secure bag to avoid exposure of powder to the environment. UFP 1001 should remain usable up to one year or longer. Hardener IWPH 101 can be kept indefinitely if not exposed to humidity.

In the original containers at 30^oC UFP 1001 Resin has a storage life of approximate 9 months. The maximum storage life is attained when UFP 1001 Resin is stored under dry and cool conditions. The product should always be protected from high temperature and high atmospheric humidity.
Direct sunlight renders UFP 1001 Resin rapidly unusable. It should, therefore, not to be stored in the open. Once a container has been opened, the contents should be used up as soon as possible.

Recommended Glue mix for Plywood
The following formulation has been found to give an optimum bond quality at an acceptable cost level.

AUFP 1001	:	100 parts by weight
Filler (wheat flour)	:	30-50*
Hardener IWPH 101	:	3-5
Water	:	125-135 *
Pot Life @ 30 C	:	4 hour minimum
Ideal glue mix viscosity @ 30°C	:	1800-2000 cps.

• Subject to variations in the water taking capacity of wheat flour, the above formulation may have to be adjusted appropriately for optimum working viscosity and pot life.

Our technical service personnel would be glad to provide any further assistance in the use of our product.

Filler	:	The recommended Filler is wheat flour. The flour used should be fresh, white with an unmodified fine particle size of medium water taking capacity and a low ash content.
Hardener	:	Hardener IWPH 101 is a hot pressing hardener formulated for use in conjunction with UFP 1001.
Glue Mixing	:	1. Add 2/3 of required water into the mixer followed by all the UFP- 1001 and start the mixer. 2. After mixing for a few minutes, add all required Filler and continue mixing until all lumps smoothens out. 3.Add remaining water and all IWPH (hardener). Mix 2-5 minutes. Then mix is now ready for use.

Glue Spread
The amount of glue spread required depends heavily on factors such as veneer texture, thickness, temperature, moisture content and porosity, ambient temperature and humidity, assembly time and pre-press time. Generally, a higher spread is required when veneers are rough, thick and warm. This is also true when assembly time is excessively long. Optimum spread values should be determined by practical trials.

The following schedule may be used as a guide only.

Core veneer thickness (mm) Glue spread (SGL) Lbs/1000 sq. ft g/sq.ft 1.8 and below 29-35 13-16 2.1-2.5 33-39 15-18 3.2-3.8 38-40 17-20 4.2-5.0 40-46 18-21

Note:
It is strongly recommended that glue spread be checked at regular intervals per production day. This could be achieved by spreading core veneers and determining resin pickup by weight difference.

Recommended Moisture Content of Veneers
Core Veneer : minimum 6 % Optimum 8-10% Maximum 14%

Assembly Time
Open assembly time:
This is the time period from the spreading of glue onto veneer to the time when the assembly is cold pressed. For optimum results in bond strength, it is recommended that open assembly time should not exceed 30 minutes. This could simply be achieved by setting open assembly time constant, say 25 minutes rather than allowing it to vary by keeping the number of panels assembled constant. The latter would lengthen the assembly time when core veneers are loose.

Closed assembly time:
This is the time between immediate completion of cold pressing and the beginning of hot pressing. For optimum bond results, this time should be kept to minimum, preferably less than 30 minutes.

Pre-pressing:

• As a guide, a pre-pressing period of 9-12 minutes is often satisfactory. Normally, a specific pre-pressing pressure of 10-15 kg/cm2 should be sufficient.
• During pre-pressing, it is often necessary that caulk boards be placed within the loads and spread about 12 inches apart.
• After pre-pressing, the panel should be hot pressed immediately or dead-stacked for a period of not more than 30 minutes (ref. Closed assembly time) before hot pressing.
• When panels are dead stacked, it is recommended that the top panels be weighed down by caulks to prevent possible curing of face veneers.

Hot Pressing
Loading time:

• This is the time period elapsing between the placing of the first panel assembly in the press and the application of full pressure to that press load.
• To avoid any risk or pre-cure, loading time should be kept as short as possible, preferably not more than 2 minutes.
• The glue must still be tacky, hence capable of flow prior to application of full pressure.

Pressing pressure:
The required specific pressure on plywood panel depends on factors such as panel thickness and veneers species and texture.
The following specification may be used as a guide only

Plywood thickness (mm) Sp. Pressure on plywood (kg/cm2) 3-6 9-11 9-16 10-12 18-25 12-14

Pressing temperature and time:
The required Press time for each type of construction will vary according to such factors as the number of plies that make up the panel, thickness of veneers used, wood acidity and platen temperature. To determine the actual time required, the following maybe used as a guide.

Press temperature in 100°C 110°C 120°C Basic setting time in min 1.5 1.0 0.75

 

Distance to the Deepest glue line Press Platen Temperature 100°C 110°C 120°C Under 4 mm 1.0 min/mm 0.9 min/mm 0.8 min/mm 4 to 6 mm 1.2 min/mm 1.1 min/mm 1.0 min/mm Over 6 mm 1.4 min/mm 1.3 min/mm 1.2 min/mm

Caution:
Do not use high hot press temperature to attain a short pressing period unless moisture content of veneer is carefully controlled. Always remove panels as soon as the press opens.

PACKAGING AND SHIPPING INFORMATION.

25 Kg	Packed in woven polypropylene bags (WWP bag) or paper bag with double inner polyethylene liner, heat seal.
18 MT	20 FT Container