About this product
weber.rend EXB is a high polymer-modified, dry powder, cement based adhesive mortar.
Features and Benefits
-
Polymer modified for high bond strength
-
Quality controlled and factory blended to give a consistently high quality product
-
Practical benefits of smooth application, speed, economy and long shelf life
Preparation
All surfaces must be sound, clean, dry and free from any material which may impair adhesion.
Where weber.rend EXB is used as an adhesive on to a plywood substrate, the sheathing must be of adequate thickness, securely fixed, in-plane, without deflection or edge protrusions.
Scaffolding must be independently tied to allow uninterrupted application. Any faults in the structure, particularly those which may lead to moisture penetration, must be rectified.
Mixing and application
Mix weber.rend EXB by adding clean water only. Mix in a rubber/plastic bucket using a paddle mixer to a thick creamy consistency.
Bonding insulation to plywood
Apply weber.rend EXB approximately 6 mm thick to the weber.therm MFL insulation. Fully comb prior to fitting the plywood substrate then insert Weber fixings at the rate of 2 per board or part board every fourth course.
Bonding brick slips
Apply a coat of weber.rend EXB, nominal thickness 4 mm (in two passes) to an area approximately 0.75 m² and comb horizontally using a 6 mm notched trowel. Press the brick slips into the freshly applied mortar.
Alternatively, apply a tight coat of weber.rend EXB, a small area at a time, and butter the back of the brick slips.
Use 8 or 10 mm spacers to create the required joint and support the brick slips while the mortar sets.
Good practice
Do not apply:
● If frost is forecast within 24 hours of use
● In damp/wet conditions
● In temperatures below 5°C or above 30°C
● On elevations in direct sunlight or where the substrate is hot
Storage and Shelf life
When stored unopened in a dry place at temperatures above 5°C, shelf life is 12 months from date of manufacture.
Health and Safety
Contains cement (Contains chromium (VI).
For further information, please request the Material Safety Data Sheet for this product.
Technical services
weber's Customer Services Department has a team of experienced advisors available to provide on-site advice both at the specification stage and during application. Detailed specifications can be provided for specific projects or more general works. Site visits and on-site demonstrations can be arranged on request.
Technical helpline
Tel: (01525) 722110
Fax: (01525) 718988
Sales Contact
Sales, England and Wales
Tel: (01525) 722100
Fax: (01525) 718988
Sales, Scotland
Tel: (0141) 445 0121
Fax: (0141) 445 0122
Sales, Ireland
Tel: (028) 9335 2999
Fax: (028) 9332 3232
