EWI - Refurbishment
External Wall Insulation - New Build
External Wall Insulation - Refurbishment Traditional Housing Non Traditional Housing High Rise & Multi Storey Epsitec Emmedue M2 Building System System Components System Finishes Application Guide System Finishes Standard Detail Drawings Completed Projects Typical U Value Calculations Product Literature
Polymer Modified Renders
Silicone & Acrylic Finishes
Brick Slip Cladding
GRP Canopies
Technical Support
Case Studies
Environmental

WBS Ltd



Product Literature Product Samples Contact Details News / Sponsorship Home Page Home Page Sales Areas Approved Contractors Testimonials Recruitment Useful Links Useful Links
    Where am I ?    Home > External Wall Insulation - Refurbishment > System Components > Basecoats & Adhesives

WBS Bulletpoint


BASECOATS & ADHESIVES

 WBS Fibre Base
WBS Bulletpoint
A versatile basecoat offering high levels of flexibility, improved tensile strength & anti-crack resistance.

 WBS UF Base
WBS Bulletpoint
A basecoat with excellent workability qualities. Can be sprayed or applied using traditional methods. Ideal as a basecoat for thin coat acrylic finishes.

 WBS Bedding & Scrim Adhesive (HP12)
WBS Bulletpoint
HP12 uses high polymer technology, creating a cost effective basecoat with enhanced adhesion for difficult substrates.
HP12 is also widely used for its flexibility and tensile strength for thin coat systems. Incorporation of an alkali resistant fibre mesh may be required.

 WBS Bedding & Scrim Adhesive (HPX)
WBS Bulletpoint
HPX is an ultra high-performance render incorporating high polymer technology and fibres, it is generally used on unusual substrates that require greater flexibility and adhesion.
In addition HPX has proven to work exceptionally well with a wide range of building boards. Incorporation of an alkali resistant fibre mesh is usually required.

 WBS Bedding & Scrim Adhesive (K&A)
WBS Bulletpoint
K&A adhesive is a mineral based, bonding and reinforcing filler with water repellent & vapour permeable properties.
It is ideal for use on the HECK external wall insulation systems, using any type of insulation board. K&A’s flexibility and tensile strength is ideal for use with thin coat silicone & acrylic systems. Incorporation of an alkali resistant fibre mesh is always required.

 WBS Bedding & Scrim Adhesive (ZF)
WBS Bulletpoint
A ready mixed, high-performance adhesive incorporating high polymer technology and fibres. Being a cement free paste, ZF is easy to apply, highly flexible, extremely fine grained and offers outstanding adhesion.
Suitable for use on the HECK external wall insulation system (using EPS insulation boards only) and is an ideal product for use with thin coat silicone & acrylic systems. Incorporation of an alkali resistant fibre mesh is always required.

 WBS Brick Slip Adhesive (BA1)
WBS Bulletpoint
BA1 is a polymer modified, high performance adhesive, ideal for brick slip application, due to its tensile strength, ease of application and flexibility.


 





WBS Basecoat

HP12 Scrim Adhesive

K&A Scrim Adhesive

WBS Basecoat

 


Choosing the right basecoat for your chosen WBS External Wall Insulation System

When considering the right adhesives to use on a particular project, a number of variables should be considered, including the substrate, the insulant type and the finial finish required.

The table below gives a good indication as to which products should be used in various circumstances.

NOTE: Please consult WBS Technical Department for other substrates such as non-traditional housing, timber frame, steel frame, ICF, SIP’s etc.

 

  System
Substrate
Insulant
Basecoat
Fixing Method
Reinforcement
Finish
BBA/ETA  
  Traditional EWI System with cementitious finish

Masonry
Concrete

EPS
MW
PIR
PUR
PH

HP12

minimum 3mm
Wet / Dry +
Mechanical
WBS Alkali resistant glass fibre reinforcing mesh

6-8mm Basecoat render with dry dash finish

or
*other finish

BBA
Certificate No 03/4058

+
Detail Sheet 3
 
  Heavyweight EWI System with lathe reinforcement & cementitious finish
Masonry
Concrete
EPS
MW
HP12 or UF

minimum 10mm
Wet / Dry +
Mechanical
Metal Lathe
6-8mm Basecoat render with dry dash finish

or
*other finish
BBA
Certificate No 03/4058

+
Detail Sheet 2
 
  EWI System with anti-crack silicone / acrylic finish ‘Thin Coat’
Masonry
Concrete

EPS
LAM
MW

K&A

minimum 3mm
Wet / Dry +
Mechanical
WBS Alkali resistant glass fibre reinforcing mesh
Silicone/Acrylic
'K' Finish
1.0/1.5/2.0
/3.0mm

Silicone/Acrylic
'R' Finish
1.5/2.0mm
ETA
05/0045 EPS


ETA
05/0079 Lamella


ETA 05/0216 MW
 
  EWI System with pure acrylic basecoat anti-crack silicone / acrylic finish ‘Thin Coat’
Masonry
Concrete
EPS
MW
ZF

minimum 3mm
Wet +
Mechanical
WBS Alkali resistant glass fibre reinforcing mesh
Acrylic
'K' Finish
1.0/1.5/2.0
/3.0mm

Acrylic
'R' Finish
1.5/2.0mm
ETA
06/0273 EPS
 
  EWI System with brick slip finish
Masonry
Concrete
EPS
MW
PIR
PUR
PH
BA1
Dry +
Mechanical
WBS Galv /Stainless Brick Slip Mesh
Brick Slip
   
  Uninsulated Brick Slip Application
Masonry
Concrete
CSB
None
BA1
Mechanical
WBS Galv /Stainless Brick Slip Mesh
Brick Slip
   
  Render Only onto CPB
CSB
None
HPX / ZF

3-4mm
N/A
WBS Alkali resistant glass fibre reinforcing mesh
6-8mm Basecoat render with dry dash finish

or
*other finish
   

 * other cementitious finishes available
WBS bullet
Roughcast
WBS bullet
Silicone Scratch Render
WBS bullet
Tyrolean Render
WBS bullet
Alpine Render
WBS bullet
Smooth Render
WBS bullet
Brick Effect Render
 Abbreviations
PH Phenolic
PIR Polyisocyanurate
MW Mineral Wool
EPS Expanded Polystyrene
PUR Polyurethane
CPB Calcium Silicate Board
 


 © Wetherby Building Systems Limited 2006