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Frequently Asked Questions
We're here to help.
Service FAQ’s
What Is The Minimum Order Value For Free Delivery?
Carriage is FREE on all orders above £500. Any orders of £500 pound or less will incur a £16.00 carriage charge. Please note, all prices are net and will be subject to VAT.
How do I obtain technical documents for your products?
Please contact our Enquiries Team
What are your opening times?
We are open from Monday - Friday from 07:30 - 17:00 excluding public holidays.
Product FAQ’s
Why do I need to use an ISM (Interface Sealing Membrane) rather than mastic, to seal around a window or along board edges?
An Interface Sealing Membrane has specific properties that make it suited to perform its primary function of creating a weather and airtight seal.
As well as the necessary features of resistance to water penetration, and a compliant Fire Classification, it is also very durable and flexible which enables it to cope with temperature expansion or contraction and building movement.
How do I clean dried adhesive/primer off windows, or surfaces that it shouldn’t be on?
Our adhesives and primers are made to be very robust and have a long service life. As such, they are not easily broken down by cleaning chemicals.
The best way to remove dried or cured adhesives/primers is by mechanical means with a scraper or similar, using a suitable lubricant (not supplied by OBEX). Care should be taken not to damage any sensitive surfaces such as paintwork.
Once most of the residue has been removed, a solvent cleaner will help to further clean up the surface.
How do I dispose of your products?
Protection film can be recycled in line with local authority regulations.
Empty paste adhesive foils, primer and contact adhesive tins are classified to EWC 15-01-10 - described as "packaging containing residues of or contaminated by hazardous substances".
Technical FAQ’s
What is the minimum temperature I can apply paste adhesives in?
The OBEX CORTEX Paste Adhesives can be applied from 5°C and rising. This applies to both air and surface.
What should the membrane bond-width be on non-porous materials?
You should allow for a minimum 50mm bond width on all non-porous surfaces such as window frames, SFS and other similar construction surfaces.
What should the membrane bond-width be on porous materials?
You should always allow for a minimum 100mm bond-width on all porous surfaces such as concrete, sheathing board or other similar construction surfaces.