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Q. What is the shelf life of Thermoflex Warm Edge Spacer?



The shelf life of Thermoflex Warm Edge Spacer is 12 months from the date of manufacture and this is printed on the individual label attached to each box.  This is a similar shelf life to other pre-desiccated flexible spacer systems and may still be fully active beyond this period.  

To ensure that the product is fully active, you can check this using an activity test kit, which is  available to purchase from Thermoseal Group.  See: Thermoflex Desiccant Test KitsReplacement Humidity Indicator Cards are also available.

We recommend that once opened, Thermoflex should be resealed in the original foil bag, expelling as much air as possible to ensure the maximum usable life.

Q. What forms of Desiccant are used in IG Manufacturing?



Molecular sieve desiccants for the manufacture of Insulated Glass (IG) units can take two forms. Firstly, when spacer bar with a cavity space inside is used (either metal spacer or warm edge), a desiccant comprised of small beads such as Eurosiv is used to fill the cavity inside the bar – standard bead (1-1.3mm) or Extra-Mini Bead (0.3-0.8mm). Alternatively, a foam spacer system such as Thermoseal Group’s own Thermoflex warm edge spacer is pre-desiccated with a 3A desiccant in the form of a powder.

Q. Will Thermoflex reels work on current manual and automated equipment?



Yes. All reels / coils have been made to fit with existing foam spacer manufacturing equipment.

In terms of automation, we have supplied samples of our warm edge products to a range of machinery manufacturers including those who supply worldwide, such as Forel, Lisec and Bystronic; as well as others such as Korean and Chinese manufacturers who supply to their own specific market rather than for export.  Although our products generally work on the majority of automated machine set-ups, we have tweaked our product formulas and worked with the manufacturers, distributors and customers, both in the UK and export markets, to build up a database of specific calibrations for each type of machinery. Ultimately, we took our time with product trials, which was more crucial when working with Thermoflex as we made minute alterations to the formula to optimise the way it runs on the wide range of different machines operating across different continents.

It’s important to add at this point in time, that in order to do this we have invested heavily in our Technical Centre and EN1279 Test Facilities to ensure that any minor alteration we make to our products doesn’t have any impact on its highest performance thermal properties, or on the longevity of the product within the lifetime of a window. 

Q. Why Thermoflex Warm Edge Spacer is your best purchasing decision?



Thermoflex Warm Edge Spacer is a premium elastomeric foam product offered at a very competitive price.

Do you currently have to wait 7-10 days for your flexible warm edge spacer to be delivered in the UK?  You can purchase Thermoflex in any quantity from 20/40 metre reels to large Auto Reels in singular boxes or pallets and receive it within 3 days or less by one of Thermoseal Group’s own fleet of vehicles. 

Thermoflex can also be purchased from any of Thermoseal Group’s depots and can be delivered in the UK with a wide range of other IG components with no delivery charge (minimum total order quantities apply).

Q. Why is Thermoflex a highest quality premium product?



Thermoflex Warm Edge Spacer is made exclusively in Thermoseal Group’s own factory where we compound our own raw materials in-house so that we can completely control the quality of our products from initial inception of the idea.  We design and develop our own products; we test all of our products in our own laboratory and then in our EN1279 test centre to European and International standards before submitting them for independent testing; we source only the best raw materials; we have strict quality control procedures in place; we ensure our products are packed and packaged straight from our production line to ensure the longevity of the product.  This is particularly important for Thermoflex which is moisture-sensitive so speedy air-tight packaging helps to minimise moisture up-take to preserve this for its lifetime in IG sealed units.

Thermoflex Warm Edge Spacer is made to Thermoseal Group’s own exacting standards in terms of tolerance on the sizing of the product. Our innovative manufacturing control and processes ensures that when our spacer comes off the production line, that there is less variance in size than competitors.

Q. What is Thermoflex Warm Edge Spacer?



Thermoflex Warm Edge Spacer System is a flexible pre-desiccated foam rubber spacer system with a unique gas/moisture barrier tape and pre-applied adhesive side tape. It is one of two warm edge spacer systems we manufacture in-house. Thermoflex and Thermobar both offer highest performance and are the result of Thermoseal Group’s 39-plus years of dedication to insulated glass.

Thermoflex is currently available in black and grey in profile widths: 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm and 20mm. These are supplied in small reels, medium reels and large auto-reels. Click here for the full range.

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Thermoseal Group

Our business is dedicated to the manufacture and supply of highest performance components and machinery used in the manufacture of insulated glass. Our particular focus Is on the development of components designed to help meet the changing requirements for more thermally efficient windows. We are a multiple award-winning organisation with almost 40 years in the industry.

Latest News

Thermoseal Group Wins Spacer Bar Manufacturer of the Year 2020
Date Added 16/12/20

Thermoseal Group, the UK’s leading manufacturer of warm edge spacer systems and distributor of over 2,500 insulated glass (IG) components, has... > More

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