Packed with a comprehensive range of products for all your sealing and protection needs.
The Gold Standard
Cortex® 0200FR is the UK’s first BBA approved Class A2 Membrane.
At Obex, we've always been proud of our reputation for developing innovative new products that are designed to improve the quality and safety of new-build projects. Our new Cortex® 0200FR Class A2 Membrane combines combines a flexible, textured surface with maximum bond strength. It provides an airtight and weathertight seal on construction projects. The surface achieves A2, s1-d0 (EN 13501-1) fire rating.
Contact us today
An industry-leading specification...
BBA approved certification
Tested to an A2-s1,d0 (EN 13501-1) fire rating
Excellent UV resistance and elasticity
Provides an airtight and weathertight seal
Patent pending
Fire Resistance | A2-s1,d0 (EN 13501-1) |
Thickness | 0.20mm |
Tensile Strength | Longitudinal 3198 N
Transverse 2035 N (EN 12311-1) |
Tear Strength | Longitudinal 247 N
Transverse 242 N (EN 12310-1) |
Water Vapour Permeability | 0.28m (EN 1931) |
Water Tightness | 2 kPa (EN 1928) |


Cortex® 0200FR is part of Obex’s FIRE-RATED SEALING SYSTEM
Cortex® 0220FR Class A1 Breather Membrane
Designed to meet the highest levels of fire protection, Cortex® 0220FR Class A1 Breather Membrane can withstand the harshest of weather conditions whilst achieving class A1 (EN 13501-1). The structure is made from fibreglass cloth impregnated with a polymer composition to form a membrane which is waterproof, vapour-permeable and fire resistant. Can be laid directly onto sheathing board or insulation and is suitable for façades with open or closed joints.
View ProductCortex® UV Façade Tape
Cortex® UV Façade Tape is a black single sided acrylic tape with a high UV resistance and excellent bonding properties. Cortex® Double-Sided Acrylic Tape has a high aging resistance and excellent bonding properties with a very high performance adhesive for indoor and outdoor use. Developed for joining Cortex® 0220FR Class A1 Breather Membrane.
View ProductCortex® 0200FR Class A2 Membrane
Our new Cortex® 0200FR Class A2 Membrane combines a flexible, textured surface with maximum bond strength. It provides an airtight and weathertight seal on construction projects. The surface achieves A2-s1,d0 (EN 13501-1) fire rating.
View ProductCortex® 0901FR External Corner
Cortex® 0901FR External Corner provides 100% weathertight seal with easy application for difficult corner details. Easy to cut down to suit your window projections. UL 94 – V-0 rating
Pack Quantity: 40/Box.
Cortex® 0771FR Class B Paste Adhesive
Cortex® 0771FR Class B Paste Adhesive is a high-quality, elastic one-component paste adhesive for bonding Cortex® fire-rated membranes. The adhesive is very easy to apply after curing and achieves a very good bond to most common building substrates. Cortex® 0771FR Class B Paste Adhesive achieves class B-s1,d0 (EN 13501-1)
View ProductCortex® 0500FR Class B Membrane
Cortex® 0500FR Class B Membrane is a flame-retardant flexible membrane used for sealing interfaces to provide an airtight and weathertight seal on construction projects. The material is a 100% woven Polyester PVC coated front and back finished with an acrylic lacquer. It has a textured surface on both faces to ensure maximum bond strength is achieved. Cortex® 0500FR Class B Membrane achieves class B-s3,d0 (EN 13501-1), is highly UV resistant, watertight and airtight.
View Product