Borden F120 is a urea formaldehyde resin adhesive. This grade is particularly tolerant to variable conditions of moisture content, pressure, temperature, absorbency of substrate, etc within reasonble limits. It is used in the manufacture of veneered panels, flush doors, partitions, furniture assembly, etc with multiday light presses, flowline presses, RF curing equipment, LV heaters, etc. F120 is capable of performance in excess of the requirements of BS1203 MR when used with the appropriate hardener.
Hardeners
Urea formaldehyde resins are cured by the addition of hardeners. Borden F120 is a low viscosity & easily mixed with one of a range of powder or liquid hardeners. As well as the conventional powder hardeners, F120 can be used with various special types of flexible, liquid & separate application hardeners. The type & quantity of hardener should be carefully selected according to pot life & pressing time required. Further advice is available from our Technical Department on 01992 899 025.
UH583 - this is the slowest hardener in the series. Using a high hardener content will permit an all day pot life whilst curing in a hot press in under 45 seconds. Extender 99 filler can be mixed to help minimise glue penetration through veneer surfaces.
UH28 - popular hardener used for warm & hot pressing, Increasing the amount of hardener does slow down the reaction time but the main effect is to increase the viscosity of the mix, offering beneficial gap filling properties. UH28 is a combined hardener/filler.
UXE77 - combined hardener/filler with good gap filling properties. A particular benefit of using UXE77 is that it can offer in excess of 8-10 hours pot life @ 20C allowing minimal down time in production.
Liquid Hardeners
1298 - a unique flexible, very thick animal-based liquid hardener not suited to automatic mix-metering, It is used for laminating high pressure laminates & for veneering oily or curled veneers. Its flexibility permits very small movements in the veneer, thus easing the internal stresses & help minimise cracking & checking. Hot press only.
UXO104 - a filled liquid hardener designed for use in liquid/liquid systems where a modicum of gap filling is required or where penertration is a problem. Used particularly in the manufacture of doors. Can be used in conventional batch mixing, However, a cleaner & more consistent accurate method is to use a mixed metering system - eliminates the glue kitchen & overcomes pot life & potential wastage problems.
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