Prefere 5219 Liquid UF Hardener

PRODUCT OVERVIEW

The choice of hardener for Prefere 4114 depends on operating conditions, such as requirements on glue mix pot life and reactivity.

However, even other factors may affect the choice of hardener, for example the glue ability of the material, environmental requirements and special operating conditions (e.g. automatic adhesive/hardener mixer, equipment for separate application, radio frequency heating), etc.

Sizes Available

• 25kg jerrican
• 250kg barrel
• 1000kg IBC

Featured Properties

• Meets requirements of BS1203 (type MR)
• Water resistant
• Can be hot or cold cured
• Cures with radio frequency equipment

PREPARATION AND APPLICATION

The wood to be bonded must be of uniform thickness. The surfaces must be free from oil, fat, dust or other deposits.

The adhesive system gives the highest bond strength when the moisture content of the wood is 4-8%. Acceptable bond strength can still be obtained at even higher moisture content.

The hardeners are mixed with Prefere 4114 in a ratio of 100:20 parts by weight (pbw).

Handling and Storage

Under no circumstances should the hardeners be stored at temperatures below 10°C. It is also recommended to store the hardeners below 20°C. Higher storage temperatures may reduce the shelf life of the product.

Prefere 5219 should be stored at a temperature range of between 10°C and 20°C.