Mf881two Component Silicone Structural Sealantinsulating Glass, Structural Glazing, Facade, Curtain Wall System

• Customization: Available
• Adhesion Strength: High Strength
• Bonding Material: Glass
• Model NO.: MF881
• Color: White
• Usage: Construction, Transportation
• Type: Silicone Sealant
• Material: Composite Materials
• State: Fluid
• Mildew Proof: Mildew Proof
• After-Sales Service: 24 Hours After-Sales Service
• Seal Tape Kind: Organic Material
• Transport Package: Barrel
• Specification: 190L-19L
• Trademark: SILANDE
• Origin: China
• HS Code: 3506919010
• Production Capacity: 50000PCS/Month
• Package Size: 21.00cm * 14.00cm * 18.00cm
• Package Gross Weight: 6.500kg
• Lead Time: 1 days (1 - 6000 ml) ; 3 days (6001 - 60000 ml) ; To be negotiated ( > 60000 ml)

Product Description

MF881-two components structural silicone sealant 

We focus on design, research and production of Spacers and Glass pads. Through superior production techniques and machineries, we become market leader of Spacers and Glass pads in Chinese market and oversea market as well. To meet customers' demands in quality, service and cost is our goal. Our technical team has more than 20 years experiences in IGU industry, and we will meet customers' requirement via our know-how and continuously researching.

MF881
Two Component Silicone Structural Sealant
Insulating Glass, Structural Glazing, Facade, Curtain Wall System

 

APPLICATIONS
SILANDE MF881 is a two-component neutral cured silicone sealant specifically developed for the manufacturing of high performance insulating glass units used in residential and commercial use of curtain wall systems and used in structural glazing applications such as factory glazing of curtain wall units and modules for unitized and panelized systems.
 

• FEATURES
• Excellent adhesion to a wide range of substrates including coated, enamelled and reflective glasses, anodised and polyester paint coated aluminium and stainless steel.
• Excellent temperature stability: - 60°C to 180°C.
• High level of mechanical properties.
• High elasticity and high modulus.
• Joint movement: ±25%.
• Resistant to ozone.

♦ TYPICAL PROPERTIES

TEST ITEMS		MEASURED VALUE
Base	Appearance	White / Grey Ropy Paste
(Com A)	Viscosity	170,000 mPa.S
Catalyst	Appearance	Black / White Ropy Paste
(Com B)	Viscosity	80,000 mPa.S
As mixed
	Appearance	Black / White / Grey
Mixture	Viscosity	340,000 mPa.S
By weight	Application Time (23°C, 50%)	30-50 mins
(A:B = 14:1)	Tack-free Time (23°C, 50%)	30-60 mins
	Placed Vertical (50°C)	0
Sag	Placed Horizontal	No deformation
Hardness	Shore A - 24h	35
	Shore A-14 days	44
As cured - after 14 days at T 23®C and 50% R.H.
	23°C	0.97 MPa
	90°C	0.85 MPa
Tensile	-30°C	1.84 MPa
Adhesion	After Water Immersion	1.01 MPa
Strength	After Water-UV Immersion	0.97 MPa
	Adhesive Failure Area	0%
	23°C Elongation Under Max. Tensile Strength	140%
Temperature Resistance		- 60~180°C
Resistance to UV-Ozone		Continuous irradiation under water-UV 2500 hrs, No change.
Moisture Vapour Transmission Rate (MVTR)		17.7 [gr/m^2.24hrs.2mm] - EN1279/4
Gas Permeation Rate (Ar)		755 x 10-3 [gr/m^2.hrs] - EN 1279/4

♦ MIXING AND DISPENSING INSTRUCTIONS
SILANDE MF881 have to be mixed homogeneously and air-bubble free in the correct ratio. SILANDE MF881 should be mixed in a ratio of 14:1 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 MF881 Silicone Structural Sealant 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 hand-held 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.
Part A is stable in aig Part B is moisture-sensitive, must only be exposed briefly to aiR

♦ CURING
When mixing SILANDE MF881 A base + SILANDE MF881 B catalyst approximately in a 14:1 weight ratio, the material will become tack-free at about 50 minutes under ambient conditions of T 23°C, 50% R.H. Under these conditions approximately 70% of strength should develop within 24 hours. Development of full properties requires full evaporation of cure byproducts and will normally be achieved within 7 days. Full properties will take additional time in colder climates or deeper SSG cavities.The speed of reaction mainly depends on the temperature, the higher temperature the faster curing process. Heating above 50°C is not advisable as it may lead to bubble formation.

Packaging Specifications:

• Component A: 200L iron drum
• Component B: 20L plastic bucket
• Medium drum packaging: 20L plastic drum
• Component B in 310ml plastic tube

 

TEST ITEMS	TEST RESULTS	TESTS1ANDARD
Base	Polyisobutylene (PIB)	-
Color	Black	-
Appearance	Solid mass	GB/T 1033.1
Density	1.1/1.25 fe/cm^3]	JC/T914
Shear Strength	0.21 MPa
Penetration (1 /1 Omm)	25°C 40
	130°C 290	JC/T 914
Volatile Content	Max. 0.02 %
Fogging	Without visual fogging	-
Moisture Vapour Transmission Rate (MVTR)	0.26 [gr/m^2.24hrs. 2mm]	EN1279-4
Gas Permeation Rate (Ar)	1.30x10-^3[gi7m^2. hrs]	EN1279-4

.APPLICATION FIELD

• One component, solvent free, non-fogging, permanently plastic butyl sealant, formulated for primary sealing of insulating glass units.
• It can keep its plastic and sealing properties in a wide temperature range.
• Excellent adhesion properties on glass, aluminum alloy, galvanized steel and stainless steel.
• Minimum moisture vapour and gas permeation.
• Excellent temperature stability: - 30°C to 80°C.

♦ TECHNICAL DATA - TYPICAL PROPERTIES
MF322 two-component polyurethane corner glue
Mainly used for bonding and sealing between aluminum alloy corners and profile cavities in aluminum alloy door and window structures; suitable for bonding wooden doors, windows and doors; for processed different materials, such as wood, building materials, ceramics and metals It has good adhesion.
How to use instructions
Remove dirt, dust, oil, frost, etc. on the surface of the substrate; place the plastic nozzle on the open bottle mouth and tighten it, and use a dedicated 1:1 double bottle glue gun to inject glue. Uncured glue can be cleaned with special cleaning agents (or other solvents such as alcohol).

Packaging

Packaging
1:1 double plastic bottle packaging: 600 ml per group; 9 groups per carton

Transport transmission
This product is non-hazardous and can be transported by train, car, ship and plane

Store
Can be stored for 6 months in a cool, ventilated and dry place.

Precautions and precautions
The initial 20g of mixed glue may be insufficiently mixed and is not recommended.
The glue mixed at room temperature should be used during the application period.
Avoid contact with skin and eyes. If inadvertently, rinse immediately with plenty of water and consult a doctor if necessary;
avoid contact with children; do not contaminate food, medicine or cosmetics.
The heavy workpiece to be bonded should be avoided to move before it is completely cured, and measures should be taken to fix it when it is necessary to move.
Recommended use conditions: temperature 15 ~ 35C, relative humidity 40% ~ 80%; if the temperature and humidity are lower than the recommended lower limit, the horn glue will cure more slowly, and if it is higher than the recommended upper limit, the construction time will be shortened.