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Details about  Grey Silicone Sealant Mastic External Window Door Frame PVC PVCu uPVC 335

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Grey Silicone Sealant Mastic External Window Door Frame PVC PVCu uPVC 335
Item Ended
Item condition:
28 May, 2014 18:30:13 BST
(£0.01 / Unit)
Will post to United Kingdom. Read item description or contact seller for postage options. | See details
Item location:
Cheltenham, United Kingdom


eBay item number:
Seller assumes all responsibility for this listing.
Last updated on  27 Mar, 2014 11:31:59 GMT  View all revisions
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Item specifics

New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is ... Read moreabout the condition



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Grey Construction Glazing Silicone Sealant

Postage discount available please see 
Postage and payments tab above

Colour - Grey  / Quantity - 310 ml and C 3 size tube

We also sell this in Clear, Dark Grey, White, Tan, Magnolia & Black in our ebay shop

Product Description

EVERFLEX SILICONE 335 CONSTRUCTION is a low modulus, reactive curing silicone sealant that

cures quickly to reduce dirt pick up. It remains permanently flexible, forming a weather tight rubber-like seal


·         Faster curing than conventional low mod sealants.

·         Extremely low dirt pick up.

·         Flexible - movement accommodation of +/- 25%.

·         Waterproof seal          

·         Contains a powerful anti fungal compound to prevent mould growth.            

Areas For Use

·         Sealing around PVCu profile, trim and cladding.

·         Perimeter pointing to PVCu, timber and metal window and door frames.                                   

·         Weather sealing to pre-formed panels and form work.                                        

·         Glass to glass and glass to aluminium weather sealing.

·         Cap glazing and remedial glazing sealing.

·         General draught proofing..


·       Not for use in conjunction with bitumen, or asphalt. Use WEATHERMATE SILICONE

·       Do not use on lead or soft metals. Use LEAD MATE SILICONE.

·       On highly porous surfaces such as new concrete

·        Not for use on substrates that may bleed oils, solvent or plasticisers.

·       Use on uPVC and plastic components: Due to the wide variety and quality of these materials, the user must always carry out an adhesion test prior to use. Thermal movement of PVC-u frames can be excessive. This product accommodates movement of +/- 25% of the joint width.

·       Over painting is not possible, so on applications where over painting is required, use WEATHER MATE isoacrylic sealant (external only)

Surface Preparation

All surfaces must be clean, dry and dust free.  All loose or flaking surface coatings, and old sealant and mastic joints, should be removed before application.  Glass, metal and aluminium should be cleaned with a proprietary solvent cleaner prior to application for optimum adhesion.  Porous surfaces may require priming - a small area should be tested first.


The surfaces to be must be clean, dry and free from dust, grease and other contaminants.

Joint design should be as follows:

Minimum width: 6mm. Movement capacity will be impaired if the depth of the joint is greater than the width.

For maximum movement accommodation, it is recommended that:

1.       The joint depth should be no less than 5mm

2.       Joint depth should be 5mm for joints up to 10mm wide

3.       Joints above 10mm in width should be half the width in depth up to 20mm and  minimum 10mm for wider joints

All joints should be designed so that the seal is placed in a position which does not retain water or form a water trap.  Triangular fillets should be no less than 12mm across the face and should be finished with a flat or convex face. 

Specific Data

Specific Gravity

0.99 g/cm³

Application Rate

250 g/minute (3.2mm orifice 6.3 bar pressure)


<2 mm ISO  7390

Tooling Time

10 mins

Tack Free Time

30 mins

Shore A Hardness

15 (ASTM D2240)

Tensile Strength

1.5 Mpa  ASTM D412 (die C)

Tensile Modulus @ 100% Elongation

0.25 Mpas  ASTM D412 (die C)

Elongation at break

600% ASTM D412 (die C)

Tensile Adhesion Modulus At 100% Elongation

0.38 MPa  ISO 8339 (glass substrates)

Tensile Adhesion Strength At Break

0.55 Mpas  ISO 8339 (glass substrates)

Tensile Elongation At Break

200 %  ISO 8339 (glass substrates)

Peel Adhesion Strength

6 KN/m ASTM C 794

Volume Shrinkage

8% ISO 10563

Temperature Resistance

-40 to + 150°C

  Silicone 335 has been tested to ISO8339 and ISO10590/10563.

We have silicone application skeleton guns in our ebay shop


The Strip out Tool makes easy work of ripping out old silicone

The Smooth-Out tool is a unique tool that is ideal for smoothing out all sealant after application,

creates a perfect seal every time. Even better you will have no edge marks and no mess!

This tool is really remarkable, once someone has used it they will never seal again without it

All above items and more are available in our ebay shop 
Item can be viewed and collected from our factory in Cheltenham

 To Pay with credit card please ring 01242 254222

Open Monday - Thursday 7.30am - 4.30pm

Friday 7.30am - 1.30pm

Any further information please ring 01242 254222

Business seller information

Regent Windows
VAT number: GB 850266250
Print version

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The buyer is responsible for return postage costs.
Return policy details
Goods can be returned within 14 days of purchase Please see Terms and Conditions
Most Buy It Now purchases are protected by the Distance Selling Regulations, which allow you to cancel the purchase within 14 working days after the day you receive the item. Find out more about your rights as a buyer - opens in a new window or tab and exceptions - opens in a new window or tab.

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