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Products > Overlays

Overlay FAQ's

Self Adhesive Lead FAQ's

Health & Safety

Is Self Adhesive Lead Safe?

There are certain precautions you should take during the application of RegaLead self adhesive lead products to ensure safety:

a) Always wash your hands thoroughly after handling the lead strip.
b) Do not eat or smoke whilst working with the lead strip.
c) Ensure all unused material is stored safely out of the reach of children.

More specific H&S information is available from our sales office or you can download the “Lead and You” leaflet issued by the health and safety executive. Are there any special storage or labelling requirements in my studio?

What is Oxidisation?

When lead profile first comes into contact with the atmosphere, the surface gradually oxidizes to form a natural protective film called a patina, which eventually produces the familiar grey colour. During the initial stages of patination the lead can appear to take on various colours such as blue, bronze, gold and green.  Also when lead first comes into contact with moisture (rainwater or condensation) it may result in temporary discolouration, spotting or the appearance of white powdery deposits which in wet weather can run onto the glass.

Gradually, however, these will fade away to leave the final protective grey patina.

The time required to complete this cycle will vary depending on the purity of the lead, the location, time of year, environment, weather conditions and airborne impurities.

Patination oil can be applied to prevent oxidisation, but this needs to be applied as soon as the lead is put onto the glass.

For more detailed information on oxidisation you can download our technical data sheet TDS04

Are there any special storage or labelling requirements in my studio?

Answer coming soon...

Use in insulated Glass Units

Is the lead suitable for use inside an insulated glass unit?

Yes. European standard EN 1279 makes clear provision for the testing of lead and our profile meet the requirements of EN1279 part 6 in the following ways:
Annex C (normative): fogging test
Annex G (informative) Volatile test
Annex J (informative) Adhesion test

Regular testing to the procedures laid out in Annex J are conducted at RegaLead and a certificate of conformity is available upon reqest. Our lead profiles have also been successfully tested using the Canadian Fog Box test by a major US supplier of IG units.

Can I use lead on the outside of an IG unit?

We recommend in our data sheet TDS 05 that lead would normally be applied to faces 1 and 2 of an IG unit. With lead on face 1 (the external face) there is a possibility that the lead will oxidise which is a natural reaction when fresh lead is exposed to the elements but it can on rare occasions lead to unsightly white marks on the surface. We therefore recommend the use of our electro-phoretic coated leads which have a protective coating. For further information on the natural oxidisation of lead please refer to TDS04.

Our polyester powder coated leads are not suitable for external use and if required for use in an IG unit we would recommend either applying to face 3 & 4 or alternatively creating a triple glazed unit construction and applying the lead to the central leaf.

Use and Applications

Can I apply lead to non glass surfaces?

It is possible to apply the lead tapes to certain acrylic materials and this is a common application when manufacturing for ceiling tiles. However we recommend that you test the product thoroughly beforehand as some acrylics have a surface treatment that reduces the amount of adhesion. The EN1279 peel and sheer adhesive test would determine whether the lead is adhering sufficiently to the glass- our technical department can supply details of this test standard upon request

Can I apply to Pilkington Activ self cleaning glass?

Our products have been tested by Pilkingtons technical research department and have been approved for use with Activ glass. We would however advise caution when using UV adhesives that care is taken in the cleaning away of excess adheives not to scratch the Activ coating

Which lead do you recommend to use around glass bevels?

The use of either 4.5 mm or 6mm lead is most common around glass bevels. It is important that the lead covers the gap between the glass and the bevel edge and that the lead is boned down well. 4.5mm lead normally looks best as it is thin enough not to detract from the bevel design (particularly on complex clusters) but 6mm is easier to use for many customers as it allows for small gaps between the pieces to be covered up.

Can I use lead on 1 side of the glass?

We do not recommend our coated leads are used only on 1 side as it may be possible to see traces of paint on the rear surface of the lead. This would normally be covered up by back leading. For customers wishing only to use lead on 1 side of the glass it is important that the adhesive face is not exposed to UV light as this can, over time, lead to a breakdown in the adhesion and to a yellowing of the adhesive

Can I apply to textured glass?

It is quite common to apply lead to certain textured glass surfaces but the levels of adhesion will be reduced. Also as the lead is relatively thin the texture can show through on the lead surface.Our advise is only to apply to relatively flat textures such as Pilkington Flemish, Stipploylte or Minster.

Stained Glass Art Film FAQ's

Can I apply Stained Glass Art Film to single glazing?

Stained Glass Art Film can be applied to single glazing, but must be applied to the inside face of the glass not the exterior. For more information on application of RegaLead products download our technical data sheet TDS05.

Bevels and Bevel Bonding FAQ's

How safe is the UV-Tek system?

UV-Tek luminaires have been tested for safety by the National Radioligical Protection Board and the output from the units is less than that from natural UV light when operators use their equipment. However it is still recommended that the UV safety glasses are supplied to operators to ensure maximum protection.

Can the bevels be removed after application?

Most Regaled customers use the UV-Tek UV curing adhesive systems to provide a permanent and stable bond for RegaBevels. After full cure the adhesive is extremely difficult to breakdown, however, if for any reason you need to remove the bevel it is sometimes possible by using the gentle heat from a blowtorch and carefully levering the bevel using a suitable blade. Extreme care should be taken to avoid damage to the panel.

Can I bond to laminated glass?

As the UV Tek system cures from underneath it is not possible to cure adhesives using UV light source because laminated glass filters out 99% of UV light. We supply visible light curing systems for customers wanting to bond to laminated glass. These are activated by a wavelength of light that will pass through the laminate. It is not necessary to change the UV Tek bulbs in the luminaires.

What Installation Guarantees are there with Overlay Products?

The experience of 20 years or more suggest that our lead strips when applied firmly to clean glass surfaces will give many years of service. Industry standards for many professionally manufactured usually double glazed products carry a typical l 0 year guarantee.