A1857

PRODUCT INFORMATION

Alpha A1857 has been specially developed for fixing mineral wool fire protection systems. It is also suitable for fixing other insulation products where a fire resistant adhesive is needed.

Alpha A1857 has good aging properties, contains no solvent and conforms to the latest environmental legislation.

KEY INFORMATION

Water-based adhesive
Fireproof
Environmentally friendly
Easy to apply

Ready to use
High durability

TYPICAL APPLICATIONS

Alpha A1857 is suitable for the following applications:

Mineral wool to MDF
Mineral wool to steel

PRODUCT CHARACTERISTICS

The following technical information and data should be considered representative or typical only, therefore the information should not be used for specification purpose.

Property

Data

Colour

White/off-white

Base

Sodium silicate

Consistency

Viscous Paste

Total Solids Content

68 ± 1.5 %

Viscosity (20°C)

1,600,000 to 2,000,000 cP

Specific Gravity (20°C)

1.705 g/cm³ at 20°C

Adhesion Time

8– 16 hours depending on temperature

Coverage

1.5—2 kg/m²

PRODUCT PERFORMANCE

The performance data presented here has been determined by Alpha Adhesives & Sealants Limited standard test methods and are average values that should not be used for specification purposes. Our recommendations on the use of this product are based on tests believed to be reliable. It is advised that users conduct their own tests to determine the suitability of the product for their specific application.

Test

Substrates

Results/Observations

Reaction to fire

Mineral wool-based Fire Protection Systems

Up to 4 hours

HANDLING & APPLICATIONS

The general application information presented here is based upon typical conditions determined by Alpha Adhesives & Sealants Limited testing. Our recommendations on the use of this product are based on methods believed to be reliable. It is advised that users conduct their own tests to determine the suitability of the product for their specific application.

Process Step

Guidelines

Surface Preparation

All surfaces should be dry, clean and free from dust, grit, wax, grease or oil using Alpha T161 or a suitable cleaner.

Adhesive Application

The following application method should only be used as a guideline. It is advised that the user conducts preliminary tests to ensure they are using the adhesive correctly for their own purpose.

Apply the A1857 to the surface using a serrated trowel having 1/16 inch triangular notches, spaced at 3/16 inch centres. Coat two to three square yards at a time.
Place the material in position and press or roll down firmly to eliminate air pockets and ensure even, overall contact.

Curing

All bonded asssemblies should be allowed to dry for a minimum of 48 hours.

Cleaning

For wet material, it is advised that any spillages be cleaned up immediately with a damp cloth before the adhesive can fully dry.

Dried adhesive can be cleaned with Alpha Cleaner T 161.

HEALTH & SAFETY INFORMATION

Alpha A1857 is classified as non-hazardous according to Directive EC 1272/2008. Please refer to the Alpha A1857 Safety Data Sheet for further health & safety information.

STORAGE

Alpha A1857 should be stored in its original container, with the lid tightly secured, in dry conditions and at temperatures between 5°C and 25°C. Alpha A1857 will keep satisfactorily for up to 18 months from date of manufacture if stored according to the recommended conditions.

PRODUCT AVAILABILITY

Product Reference

Pack Size

Container

Box Quantity

Alpha A1857

17kg (10 L)

Plastic Bucket

N/A

ISSUE : 5

September 2021