SV-888 25kg Barrel Weather Resistance Sillicone Sealant

Short Description:

SV-888 silicone weatherproof sealant is a one part, elastomeric and neutral cure silicone sealant, designed for glass curtain wall, aluminum curtain wall and building exterior design, has excellent weathering properties, it can form durable and most building materials, waterproof and flexible interface.

Package: 25kg/drum

Color: Black,White,Grey

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Product Detail

Product Tags

Product Description

FEATURES

1. 100% silicone

2. Low odor

3. Medium modulus (25% movement capability)

4. Resistant to ozone, ultra-violet radiation and temperature extremes

5. Primerless adhesion to most building materials

COLOURS
SIWAY® 888 is available in black, gray, white and other customized colours.

PACKAGING
25kg in drum

BASIC USES

1.All kinds of glass curtain wall weatherproof seal

2.For metal (aluminum) curtain wall, enamel curtain wall weatherproof seal

3.Joint sealing of concrete and metal

4.Roof joint seal

TYPICAL PROPERTIES

Test standard	Test project	Unit	value
Before curing——25℃，50%R.H.
ASTM C 679	Flow, sagging or vertical flow	mm	0
	VOC	g/L	＜80
GB13477	surface drying time（25℃，50%R.H.）	mm	30
	curing time（25℃，50%R.H.）	Day	7-14
Sealant curing speed and operating time will have different with different temperatures and temperature, high temperature and high humidity can make sealant curing speed faster, rather low temperature and low humidity are slower. 14days after curing——25℃，50%R.H.
GB13477	Durometer Hardness	Shore A	30
GB13477	The ultimate tensile strength	Mpa	0.7
	Temperature stability	℃	-50~+150
GB13477	Movement capability	%	25
ASTM C 1248	Pollution / oil, natural Weatherproof		No

Product Information

CURE TIME

As exposed to air, SV888 begins to cure inward from surface. Its tack free time is about 50 minutes; the full and optimal adhesion depends on the sealant depth.

SPECIFICATIONS

SV888 is designed to meet or even exceed the requirements of:

● Chinese national specification GB/T 14683-2003 20HM

STORAGE AND SHELF LIFE
SV888 should be stored at or below 27℃ in original unopened containers. It has a shelf life of 12 months from the date of manufacture.

HOW TO USE

Surface Preparation

Clean all joints removing all foreign matter and contaminants such as oil, grease, dust, water, frost, old sealants, surface dirt, or glazing compounds and protective coatings.

Application Method

Mask areas adjacent to joints to ensure neat sealant lines. Apply SV888 in a continuous operation using dispensing guns. Before a skin forms, tool the sealant with light pressure to spread the sealant against the joint surfaces. Remove masking tape as soon as the bead is tooled.

TECHNICAL SERVICES

Complete technical information and literature, adhesion testing, and compatibility testing are available from Siway.

LIMITATIONS

SV888 should not be applied:

● For structural glazing

● To underground joints

● To joints with high movement

● To the materials that bleed oils , plasticizers or solvents, such as impregnated wood ,or unvulcanized resin

● In totally confined spaces as sealant requires atmospheric moisture for cure

● To frost laden or damp surfaces

● For continuous water immersion

● When surface temperature below 4℃ or over 50℃

DISCLAIMER

The information presented herein is offered in good faith and is believed to be accurate. However, because conditions and methods of using our products are beyond our control, this information should not be used in substitution for customer’s tests to ensure that our products are safe, effective, and fully satisfactory for specific applications.