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home>>Product>PU Sealant-low modulus construction pu sealant

Available size: 310ml
Color: Black, white, grey...

Low modulus construction pu sealant
No.Low modulus construction pu sealant/SP-1018AL

Overview

Features

Technical data

Directions

Low modulus construction PU Sealant is single part polyurethane based, high/middle modulus sealant, which cures on exposure to atmospheric moisture to form elastomeric mastic, has excellent adhesion on all cement based materials, brick ceramics, polyurethane, epoxy, most polyesters, most metals and most timbers.

Where to use

Construction PU Sealant is suitable for bonding or sealing joints between most construction materials, where a high bond strength is required. Trafficable floor joints

Assembly of metal framed buildings

Cover plates and covings

Bolted lap joints

Prisons, gaols, grand stands

Product features

Modest hardness after curing, flexible, durable and easily applied

No sagging, no pollution and corrosion to base material and environment

One component, moisture curable, excellent thiotropy, convenient for applying

Excellent sealing performance, extrudability, excellent water and aging resistance

Feature	Parameter
Appearance:	Black
Density(g/cm3):	1.35+0.05
Tensile strength(Mpa):	>4.0
Elongation at break(%):	350
Volatile content(%):	<4.0
Pollution properties:	Non
Shelf life(month):	>9
Sagging properties(mm):	0
Application temperature(℃):	+5~+35
Shore A-hardness(A°):	61+3
Tensile-sheat strength(Mpa):	>1.5
Touch dry time(min):	10~30
Curing speed(mm/24h):	3~5
Extrudability(ml/min):	>80

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MSDS
TDS

Safety precaution

Wash hands after use.

Preparation

Surfaces must be clean, dry and free of frost, grease, dust and other contaminants. To obtain maximum adhesion, surfaces should be flat to provide adequate contact. Painted surfaces must be well cured and free of loose paint. Sand glossy surfaces to a dull finish. Pre-fit all materials before applying adhesive. Cut the tip off the cartridge and screw the nozzle, then apply with silicone gun.

Application

Ensure surfaces are dry and free from oil, grease and dust.

Carefully pierce seal at end of metal tube with reverse end of cap, Attach nozzle to tube and cut to desired opening.

Apply bead along length of joist, stud or batten, on broad flat surfaces apply beads every 40cm.

Bring surfaces together as soon as possible(within the first 10mins)

Fix with sufficient nails, screws or clamping to hold load and achieve contact over the total bond area.

After use, remove nozzle and replace cap.

Allow adhesive to set(min.24 hours) before removing any temporary fastenersor clamping. Use with mechanical fasteners in high stress applications.

Effect

Strong adhesive property to most material, after applying, it can bond the parts very strong, it is non-corrosion, and long life.