Silicone Weatherproofing Sealant MF889

Product Description:

Silicone Weatherproofing Sealant MF889, a one-part, RTV neutral-cure, architectural grade sealant, is a specified, premium performance weather sealing product specifically designed for general glazing and weather sealing in curtain wall and building facades.

Typical Performance:

Excellent adhesion to a wide range of substrates including coated glass, galvanized steel, masonry, anodized and polyester paint coated aluminum and stainless steel. and there porous and non- porous substrates.

• Ideal for expansion, connection, perimeter and other movement joints
• Suitable for use on extension/compression movement capability of up to ±35% of the original joint width.
• Excellent temperature stability: – 60°C to 180°C.
• High level of mechanical properties.
• High elasticity and high modulus.
• Resistant to ozone.

Application:

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:

Silicone Weatherproofing Sealant MF889 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:

1:1 double plastic bottle packaging: 600 ml per group.

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:

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.

APPLICATION METHODS:

Install backing materials joint fillers, setting blocks, spacer
shims and tapes. Mask areas adjacent to joints to ensure neat sealant lines. Primer is generally not required on non-porous surfaces, but maybe necessary for optimal sealant of certain porous surfaces. A test placement is always recommended. Apply MF889 Silicone Weatherproofing Sealant in a continuous operation using a positive pressure.The sealant can be applied using many types of air-operated guns and most types of bulk dispensing equipment. Betore a skin forms (typically within 15 minutes), tool the sealant with light pressure to spread the sealant against backing matrial and the joint surfaces. Remove masking tape
as soon as the bead is tooled. Fortimix Construction Facebook Page visit