One Component Fast Curing Gp Acetic Silicone Sealant for Glass

• Bonding Function: Instant Adhesive
• Morphology: Solvent
• Application: Automobile, Construction, Woodworking, Footwear & Leather, Fiber & Garment, Packing
• Material: Silicone
• Classification: Room Curing
• Main Agent Composition: Inorganic Adhesive Material
• Model NO.: 4850
• Characteristic: Waterproof
• Promoter Composition: Curing Agent
• Composition: Inorganic Material
• Color: White Gray Black
• Sample: Free Sample
• OEM: Yes
• Shelf Life: 18 Months
• Transport Package: Drum
• Specification: 200L
• Trademark: WACKER
• Origin: China
• HS Code: 3214109000
• Production Capacity: 1000000 Tons

Product Description

 

 4850 is a one component, acid cure, high modulus silicone sealant which is suitable for glazing and industrial application.  
4850 reacts with moisture in the air at room temperature to form a silicone elastomer with long-term flexibility.

Features

• does not flow
• Excellent extrudability from low temperature (+5°C) to high temperature (+40°C)
• Low cure shrinkage
• Good flexibility from low temperature (-40°C) to high temperature (+180°C)
• Fast cure: short tack free time
• Long shelf life
• Solvent free
• High modulus
• Good construction performance
• Excellent adhesion to glass, glazed, ceramic tile, many plastics and coated surfaces

Uncured sealant
performance	standard test	data
Density 23°C	ISO 1183, Method A	1.01*[g/cm³]
Sag	ISO 7390,  U-groove	No sag
Extrusion rate	23°C PV 08127	270[ml/min]
Cure rate 23°C / 50 % relative humidity		approx. 3[mm/24h]
Skin formation time 23°C / 50 % relative humidity		[min] 8
Cured sealant (cure for 4 weeks at 23°C / 50% relative humidity)
Tensile strength	ISO 8339	0.70[N/mm²]
Elongation at break	ISO 8339	180%
Modulus (100 %)	ISO 8339	0.50[N/mm²]
Hardness, Shore A	ISO 868	23

Application
• Glass and window construction
• Seals joints between glazing and framing (frames, beams, mullions)

 

Preparation:
The surface of the substrate in contact with the sealant must be clean, dry and free of any loose objects, dust, dirt, rust, oil or other contaminants. Not much Porous substrates should first be cleaned with a clean, lint-free cotton cloth. completely in solvent Immediately wipe off the solvent with another piece of the same cotton cloth before it evaporates.