Window and door frames

Window and door frames are largely bonded with PVAC adhesives which meet the requirements for durability class D4 according to EN 204.

Window scantlings and door frames may be exposed to extreme weather conditions. They are largely bonded with PVAC adhesives which meet the requirements for durability class D4 according to EN 204. They are formaldehyde free, user and environmentally-friendly products. They can be used in cold, hot and HF presses.
Two-component emulsion polymer isocyanate (EPI) adhesives also meet the requirements for durability class D4 and are specially recommended for bonds with direct exposure to weathering and bonding of modified wood.

SELECTION OF PRODUCTS

Product	Base	Viscosity(mPas) at 23°C	MFFT (°C)	Crosslinking	Pot life	Open Assembly time (min.) , RT	Pressing time (min.), RT	Durability group EN 204	Special properties
MEKOL 1131	PVAc dispersion	7000 – 10 000	approx. 6	Mekol B10	approx. 8 hours	7 – 10	15 – 30	D3/D4	Watt’91(80°C)>7 N/mm2
MEKOL 1141	PVAc dispersion	10 000 – 14 000	approx. 5	Mekol B11	3 – 4 days	7 – 10	20 – 40	D4	Watt’91(80°C)>7 N/mm2
MEKOL 1144	PVAC dispersion	approx. 7000	approx. 6	/	/	10 – 12	20 – 40	D4	one-component, Watt’91(80°C) >7 N/mm2
MEKOL 1152	EPI dispersion	5000 – 8000	< 0	Mitopur B7	40 – 60 minutes	20 – 25	45 – 60	D4+	very high heat resistant bond, hard-to-stick surfaces
MITOPUR E45	1C PUR prepolymer	5500 – 9000	/	/	/	45 – 50	45 – 60	D4+	hard-to-stick surfaces, extreme climatic conditions

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Window and door frames