Silicone Sealant for Insulating Glass-Mf882

• Type: Silicone Sealant
• Seal Tape Kind: Organic Silicone
• Seal Tape Usage: Bonding
• Material: Composite Materials
• State: Fluid
• Mildew Proof: Mildew Proof
• Model NO.: MF882
• Bonding Material: Glass
• Certificate: Ift/ Igma/Igcc
• Delivery: 7-10 Days
• Transport Package: Steel Drum
• Specification: Com A 190L/drum Com A 25kg/pail Com Bl9L/pail Com
• Trademark: SILANDE
• Origin: China
• HS Code: 3506919010
• Production Capacity: 10000barrels/Month

Product Description

MF882 -Two components Silicone sealant for insualting glass

Secondary Sealant for the Manufacturing of Insulating Glass

SILANDE MF882 is a two-		• Excellent adhesion to a wide range of
component neutral cured		substrates including coated, enamelled
silicone sealant	specifically	and reflective glasses, anodised	and
developed for the manufacturing		polyester paint coated aluminium	and
of insulating glass units used for		stainless steel.
window and door,	vehicles and	• Excellent temperature stability: - 60°C to
refrigeration, also	can be used	180°C.
for edge frame	curtain wall	• High level of mechanical properties.
system.		• High elasticity and high modulus.
		• Resistant to ozone.

TYPICAL PROPERTIES
	TEST ITEMS	MEASURED VALUE
Base	Appearance	White / Grey Ropy Paste
(Com A)	Viscosity	150,000 mPa.S
Catalyst	Appearance	Black / White Ropy Paste
(Com B)	Viscosity	80,000 mPa.S
Mixture	Appearance	Black / White / Grey
By weight	Application Time (23°C, 50%)	30-50 mins
(A:B = 16:1)	Tack-free Time (23°C, 50%)	30-60 mins
	Placed Vertically (50°C)	0
	Placed Horizontal	No deformation
	Shore A - 4h	22
Hardness	Shore A - 24h	40
	Shore A-14 days	46
After 14 days at a temperature of 23°C and RH 50%.
Elastic Recovery		94%
Adhesion Property at Definite Elongation		No Damage
	23°C	0.92 MPa
	After Aging in Hot Air	1.10 MPa
Tensile	300 hr After Water-UV	0.82 MPa
Adhesion	-20°C	1.28 MPa
Strength	60°C	0.85 MPa
	After Water-UV Immersion	0.79 MPa
	Adhesive Failure Area	0%
Elongation under maximum tensile strength at 23°C 93%
	TGA	3.6%
Moisture Vapour Transmission Rate (MVTR)		12.3 [gr/m^2.24hrs.2mm] - EN1279/4
Gas Permeation Rate (Ar)		360 x 10-3 rgr/m^2.hrsl   - EN1279/4

♦ MIXING AND DISPENSING INSTRUCTIONS
SILANDE MF882 has to be mixed homogeneously and air-bubble free in the correct ratio.SILANDE MF882 should be mixed in a ratio of 16:1 base to curing agent by weight, or equivalent 10:1 by volume for optimal properties. At this mix ratio, the sealant typically exhibits a working time of 30~50 minutes and allows units to be handled within 3 hours. Slight variations in mixing ratio can be tolerated, but these should not exceed 9:1 to 16:1 by weight to ensure maximum properties are obtained. To obtain the ultimate physical properties from SILANDE MF882, it is recommended that the base and curing agent are thoroughly mixed using an airless mixing system found on most existing commercially available two-part silicone dispensing machines. Neither hand mixing nor the use of hand­held power mixers are satisfactory due to their incorporation of air into the material during mixing that would result in altered physical properties of the cured sealant.Most commercially available metering and mixing equipments are suitable.
CURING
When mixing MF882 A base + MF882 B catalyst at approximately a 16:1 weight ratio, the material will become tack-free at about 50 minutes under ambient conditions of 23°C, 50% R.H. Under these conditions approximately 70% of strength should develop within 24 hours. Development of fu11 properties requires full evaporation of cure by-products and will normally be achieved within 7 days. Full properties will take additional time in colder climates.