Registering with MyAltro allows you to save all your favourite technical documents, blogs and videos in one place. Get access to exclusive content, additional technical support and more. Once you have submitted the registration form you will receive an email to verify your account. You will need to verify your account in order to log in, so follow the link in the verification email to complete this action.
When you set your password, it will need to be at least 8 characters including an upper case letter, a lower case letter, a number and a special character.
Log in or register for free samples and exclusive content
Can't see the region you're looking for? You can find a list of our global locations here
You are currently on the site for United Kingdom. We think you might be looking for the site for United States/Canada.
For use with all types of Altro PVCu cladding systems. Can be used in hygienic environments and areas subject to wet usage. It has excellent adhesion properties to all sound substrates used for internal wall construction. Suitable for new and refurbishment building projects.
AltroFix W639 is a non hazardous two-part MS polymer adhesive supplied in the correct quantities for mixing. Both parts are held separately within the container. The setting and curing time is dependent upon site working temperatures:-
Working time:
Loadable after:
Joint welding after:
Final strength after:
30 minutes*
48 hours*
24 hours*
3-5 days*
*At 20 °C and 65% relative humidity
AltroFix W639 is supplied in one pack size:-
5 kg unit (Ref: A639/5KG) - suitable for use with all sheet sizes
All substrates to be dried to 16% WME (Wood Moisture Equivalent) on Protimeter ‘Surveymaster’ equipment.
Recommended application temperature 10° - 30°C Altro recommends the PVCu wall sheet is installed at the approximate ambient service temperature at which the area will be when commissioned. This is to ensure that expansion parameters are not exceeded. The adhesive must not be used if the temperature is below +5°C. Lower temperatures can cause permanent damage to the product.
Substrates should be sound and free from all surface contaminants. Any contamination should be cleaned from the surface using appropriate methods and allowed to dry. Dusty or friable surfaces to be stabilised using a stabilising solution of Unibond PVA diluted 1:10 with water or Altro Primer Seal (Ref: AGCPNF/01). Both stabilisers to be applied with brush or roller and allowed to dry.
Suitable substrates include good quality fairfaced brick or blockwork: well aligned joints bagged up flush: straight to within 3mm over a 2m straight edge: brick and blocks to be flush with ones adjacent: sand and cement rendering. AltroFix W639 is suitable for plasterboard, plywood, MDF, plaster, ceramic tiles which are securely bonded to substrate and thoroughly degreased or certain sound painted surfaces (subject to an adhesive test).
Part A is a viscous cream coloured paste supplied in metal tubs. Part B is a catalyst supplied in foil bags, and is coloured blue. Pour the contents of Part B into the metal container holding Part A and mix thoroughly, for a minimum of 3 minutes, until a uniform consistency and colour is obtained throughout. A slow speed drill with a paddle attachment should be used to ensure complete mixing. Scrape the sides thoroughly during this process. Care should be taken to avoid spillage when mixing, as staining of floor coverings may occur.
The back of the PVCu sheet must be clean and free of surface contaminates such as grease and dust.
Apply adhesive to the back of the sheet as soon as possible before the adhesive thickens. Apply adhesive approximately 15mm from edges using a 4 mm x 4 mm square notched trowel, producing a coverage of approximately 1.4 kg/m2. On application, immediately apply the sheet to the wall. Apply pressure to the whole surface area of the sheet to ensure transfer and a good overall bond. Altro double sided tapes (Ref: A815) should be used to assist with initial contact to substrate, and Altro recommend that sheets are supported during the inital cure phase.
On completion, the installation should not be subject to a temperature variation of + or - 5ºC until the adhesive cures.
AltroFix W139 adhesive is supplied in 6.5kg and 8.0kg pack sizes. A 6.5kg tub of adhesive is sufficient to cover either a 2.10m or 2.50m x 1.22m PVCu sheet, (approximately 2.1kg/m²). An 8.0kg tub of adhesive is sufficient to cover either a 2.75m or 3.0m x 1.22m PVCu sheet, (approximately 2.1kg/m²). Coverages are based on applications with a 5mm x 5mm notched trowel.
It is essential that AltroFix W639 is stored at ambient temperatures of between 10°C to 25°C. Lower temperatures can cause permanent damage to product. Storage temperatures determine the viscosity of the product and if stored in cold conditions, the adhesive will not spread easily and coverage will be reduced. If stored at extreme heat conditions, deterioration of Part B can occur. AltroFix W639 has a shelf life of 9 months from date of manufacture.
Before using this adhesive, users should refer to the SDS (Safety Data Sheet) for correct safety advice and to determine the level of PPE (Personal Protective Equipment) and RPE (Respiratory Protective Equipment) that is required. A COSHH (Control of Substances Hazardous to Health) assessment and risk assessment should be carried out before using this adhesive.
Part A - Base
Part B - Hardener
Care must be taken when mixing Part B with Part A component to avoid contact with eyes and skin. Wear suitable protective clothing, gloves, eye protection and keep away from ignition sources.
Ensure the area is adequately ventilated.
In the case of contact with eyes or skin, rinse immediately with plenty of water
NOTE: “Altro Ltd” (“Altro”) endeavours to ensure that advice and information given in Product Data Sheets, Method Statements and Material Safety Data Sheets (all known as Product Literature) is accurate and correct. However, where Altro has no control over the selection of its products for particular applications, it is important that any prospective customer, user or specifier, satisfies him / herself that the product is suitable for the intended application. In this process, due regard should be taken of the nature and composition of the background / base and the ambient conditions both at the time of laying / applying / installing / curing of the material and when the completed work is to be brought into use.
However, as site conditions and the execution of the work are beyond our control, we accept no resultant liability.
Altro’s policy is one of continuous research and development and we reserve the right to update our products and information at any time without prior notice.
