Jb238 Building Expansion Joints PU Sealant for Construction

• Customization: Available
• CAS No.: 94766-07-1
• Formula: 94766-07-1
• Model NO.: JB238
• Bonding Function: Structural Adhesive
• Morphology: Solid-State
• Application: Construction, Woodworking, Building
• Material: Polyurethane
• Classification: Polyurrethne
• Main Agent Composition: Polyurethane Elastomer
• Characteristic: Waterproof
• Promoter Composition: Curing Agent
• Color: Black, White, Grey
• Model No.: Jb238
• Shelf Life: 12 Months
• Certificate: ISO9001, ISO14001, BV
• OEM: Yes
• Storage Temperature: 0~27
• Cartridge: 300ml
• CAS No: 7085-85-0
• Name: Building Sealing
• Useage: Flexible Jointing for Precast Panel, Wood, Metal
• Price: Competitive
• Factroy: Junbond
• Transport Package: by Drum; by Cartridge
• Specification: 200L; 300ml; 600ml
• Trademark: OEM
• Origin: China
• HS Code: 321410900

Product Description

 

 

Overview:
Junbond^® JB238 is One component, room temperature moisture curing Polyurethane Sealant.  It is low modulus, building joint sealant, good weather resistance, good elasticity,no harmful substances will be produced during and after curing, and there will be no pollution to the substrate.
 

 

Application:

1)Flexible jointing for precast panel, wood, metal, marble and PVC joinery seams, curtain wall, bakes clay, concrete roof tiles in constructing area.
2)Expansion joints in building, highway, tunnel, runway, water conservancy project.
3)Expansion jointing for other traditional construction.
 

Advantage:

1)Good adhesion to most of substrates withoutprimer. Good weathering and UV resistance.
2)High flexibility Movement.
3) Paintable.
4)Excellent workability.
 

Executive Standard: GB/T14683-2017

No	Test Item		Unit	Actual results
1	Appearance			Smooth, no air bubbles, no lumps
2	Tack free time(at what % humidity)		min	22-25
4	solid content			≥96%
5	Shore A hardness /72h			20-30
6	Density		g/cm3	1.49±0.1 g/cm3
7	Curing speed (mm/d)		(mm/d)	≥2.0mm/24h
8	Tear Strength			≥4.5N/mm
9	Tensile strength(MPa)		(MPa)	≥0.7MPa
10	Elongation at break			700%
11	Completely dry		hours	20
12	Temperature Resistence		°C	-50ºC~150ºC
13	Application Temperature		°C	4ºC~40ºC
14	Color			Black,White,Gray