Chemfix Acoustiflex

Description

Chem-Fix Acoustiflex is a premium quality, durable, one-part moisture curing, high solids polyurethane based adhesive. It has a strong permanent bond to most surfaces and remains flexible for its life. Acoustiflex has excellent sound deadening properties and will contribute greatly to the overall acoustic properties of the flooring system.

It is formulated for use on floor areas subject to impact or movement and conforms to Australian Standards AS 3958.1-1991 and AS 3958.2-1992.

Uses

Chemind Chem-Fix Acoustiflex adhesive is specifically designed to bond timber and parquetry to Chemind Sound-Shield Mat or structural sub-floors. It also provides secure adhesion between Chemind Sound-Shield Mat and base substrates such as concrete, timber, FC, CFC, plasterboard, cement render, floor screed and Chemind Aquagard M wet area membrane.

Chemind Chem-Fix Acoustiflex adhesive is used to fill voids in Chemind Sound-Shield acoustic underlay joints, walls, penetrations or fittings. It is suitable for both internal and external areas of residential or commercial construction.

Note

Chemind Chem-Fix Acoustiflex may be used for a variety of highly specialised applications where specific characteristics or physical attributes are required.

Any such needs should be first verified by Chemind Construction Products Technical Department to ensure that all specification requirements are met fully.

Features

The rubberised structure resists vibration and differential substrate movement, assists in reducing noise transmission and prevents de-bonding of tiles caused by tile growth or impact.

Chem-Fix Acoustiflex provides added benefits in facilitating the protective function of the acoustic underlay system. It is fully waterproof, low odour, multi-purpose and extremely flexible.

Typical Properties

Composition	One-part, MDI Based Polyurethane Prepolymer Based Adhesive
Colour	Brown
Fungus Resistance	Excellent
Water Resistance	Excellent
AS Compliance	AS 3958.1-1991 and AS 3958.2-1992

Preparation

Surfaces must be sound, dry and free from dust, loose matter, oil, grease or other contaminants. Other considerations:

Concrete to be 28 days old otherwise use Chemind Epocote F100W sealer.

Timber and rigid flooring is to be fixed to manufacturers’ recommendation.

Chemind Sound-Shield Mat acoustic underlay – is appropriate for immediate direct fixing of suitable flooring with Chem-Fix Acoustiflex adhesive.

Other acoustic underlay materials – it is advisable that a test area be laid down to evaluate compatibility of Chem-Fix Acoustiflex with the installed system.

Application

Rigid Flooring

Apply Acoustiflex with a 2 mm notched trowel to fix Chemind Sound-Shield Mat to structural floor or Chemind membrane.

Use a 4 mm notched trowel for fixing timber or another appropriate size notched trowel for tiles and other rigid surfacing to Chemind Sound-Shield Mat.

Sound-Shield System

Dry Areas.

Lay Chemind Sound-Shield Mat using Chem-Fix Acoustiflex adhesive directly to structural floor. Install flooring finish to Chemind Sound-Shield May using Chem-Fix Acoustiflex or Chem-Fix Super adhesive.

Wet Areas

Apply Chemind Aquagard, Newflex or Fastflex water-based membrane or Chemind Aquagard M polyurethane based wet area membrane to a min. DFT of 1.0 mm.

Lay Chemind Sound-Shield Mat using appropriate Chem-Fix adhesive. Seal Sound-Shield surface with Acoustiflex.

Install flooring finish to Acoustiflex with Chem-Fix Acoustiflex or Chem-Fix Super adhesive.

Refer to Chemind Sound-Shield data sheet or other Chemind product data for specific information or design requirements.

Coverage

Usage will vary with specific application and sound deadening requirement.

Application rate will increase on porous surfaces or Chemind Sound-Shield acoustic underlay or with size of notched trowel and type of rigid flooring to be installed.

Consumption by trowel over a smooth, hard surface is approximately 1 - 2 m²/litre.

Usage rate on porous or irregular surfaces may range between 1 - 2 litres/m².

Packaging

Chemind Chem-Fix Acoustiflex is packed in 15 litre metal pails.

Shelf Life

Unopened pails of Chemind Chem-Fix Acoustiflex will have a shelf life of 6 months from date of manufacture, when stored in a cool, dry place.

Opened or resealed pails of Chem-Fix Acoustiflex will skin and progressively become thick and finally unusable over a period of a few days.

Clean-up

Chemind GP Solvent may assist with the removal of uncured product.

Exercise care when using solvents.

Please review all MSDS before use.