EVT

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  EVT Natural Stone HPM

  £60.00

  Elastic single-component silicone sealant for indoor and outdoor use in contact to marble and natural stone, with 25% maximum movement tolerance. Neutral curing

  2 Week Delivery Time.

  Special properties

  • elastic silicone-based sealant
  • no plasticizer migration on absorbent substrates
  • optimized tooling properties
  • low odour formulation
  • ageing and weather-resistant, good UV resistance
  • compatible with paints
  • good adhesion also on metals, compatible with copper
  • with fungicide

  Fields of application

  For sealing joints and connecting joints in contact with marble and natural stone.

  EVT Natural Stone HPM must not be used in aquarium construction, as mirror adhesive and in areas with direct food contact.

  In underwater applications, especially accurate tooling is necessary (preparation of substrate; often primer necessary). Underwater joints must be checked in suitable time intervals and have to be reworked if necessary.

  Not suited for plastics within general poor adhesion to silicones (eg PE, PP, PET).

  Usage instructions

  Substrate pretreatment

  The substrate must be dry, firm, and free of dust and grease (clean with isopropanol, if necessary). Porous substrates (e.g. concrete, plasterboard and untreated wood) must be primed. Before primer application, remove any cement slurry, mould release agents or impregnations. In renovation projects, old sealant remains of paint and loose material must be fully removed. On coated substrates (paints, lacquers), compatibility to the sealant must be tested.

  The joint must always be provided with a suitable, correctly dimensioned joint backing (e.g. PE cord, rock wool) to prevent adhesion on three faces. To avoid contamination and to achieve a precise joint, we recommend masking the joint edges with adhesive tape before primer application and filling – especially when working with marble / natural stone.

   

  Joint dimensions

  Joint dimensions should be at least 5 x 5 mm for indoor and 10 x 8 mm (width x depth) for outdoor applications. With increasing joint width (up to 30 mm), joint depth should be roughly half the joint width. Make sure that triangular bevels have uniform sides of equal length with at least 7 mm bonding surface on each side.

  Tooling

  After applying the sealant with a suitable manual, battery-powered or pneumatic caulking gun, the sealant can be smoothed in the joint with water or with a neutral, non-staining water- based smoothing agent and a suitable tool (e.g. jointing trowel). Smoothing is not only recommended for optical reasons, but also establishes close contact and good adhesion to the substrate. Remove excess smoothing agent (risk of schlieren). Any adhesive tape used should be removed immediately after smoothing. We recommend the FS caulking gun and FS jointing trowel.

   

  Important remarks

  The function of the sealant can only be guaranteed if correctly applied in accordance with the technical recommendations given in this data sheet and in related standards. Sealant application in situations with strongly fluctuating temperatures (premature stressing of the sealant) must be avoided.

  The sealant is compatible with many paints and lacquers. Owing to a large number of different coating systems on the market, own tests concerning adhesion and compatibility have to be performed prior to application. For example, it is known that alkyd resin-based paints may give discolouration in combination with neutral curing silicones. The sealant is not overpaintable,

  Especially on powder-coated substrates, adhesion has to be tested carefully, since it can be affected negatively depending on the coating used (may even vary for different colours of the same brand of powder coating).

  In contact with bituminous, tar- or plasticizer-releasing substrates (eg EPDM, neoprene, butyl), discolouration and/or loss of adhesion may occur.

  Good ventilation must be provided during application and curing to allow curing by-products to evaporate. Low temperatures, low humidities and joint depths above 15 mm can retard skin formation and cure significantly.

  Exposure to liquid (eg acid-based cleaning agents, strongly coloured liquids) or gaseous chemicals (eg. tobacco smoke) for longer periods can result in discolouration of the product, especially for light colours (white). In general, the mechanical properties of the sealant are not adversely affected.

  Products with fungicide give additional protection against the mould to the joint. But, they can not supersede good housekeeping: It’s essential to keep the joint clean, dry and free from substances, that may serve as nutrition medium (eg soap residues, skin scales).

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• 

  EVT Prime – Ral Colour Sealant

  £60.00

  RAL Colours:

  EVT Prime Colours are stocked on the list below. If you would like a specific RAL colour not listed on the items below, please contact us and we can advise lead time and cost. RAL colours listed are a non-stock item and delivery time is anything from next day to 2 weeks, to 6 weeks, depending on the stock from manufacture.

  Areas of application

  EVT Prime Colours may be used for sealing construction joints on most surfaces. Suitable for perimeter sealing of uPVC window frames, conservatories, coated wood, aluminium, metal, concrete, plaster and sanitary applications. For interior and exterior use.

  Properties

  EVT Prime Colours cures upon reaction with moisture, remains permanently elastic, is non-ageing, contains a biocide, is durable and non-paintable. An application test is recommended before use. Do not use on natural stone. Use EVT Natural Stone HPM for marble and natural stone applications.

  Application

  Apply with a hand-operated, battery-operated or air pressure dispensing gun; then smooth the joint surface with the use of a trowel or your finger and Surface Finishing Agent.

  RAL Colours:

  1013 – Oyster White

  1015 – Anemone

  1019 – Grey Beige

  2002 – Blood Red

  3002 – Carmine Red

  3011 – Brown Red

  4008 – Signal Violet

  5000 – Violet Blue

  5001 – Green Blue

  5003 – Sapphire Blue

  5011 – Steel Blue

  5014 – Pigeon Blue

  6003 – Olive Blue

  6005 – Moss Green

  6007 – Bottle Green

  6009 – Fir Green

  6012 – Black Green

  6015 – Black Olive

  6019 – Pastel Green

  6020 – Chrome Green

  6021 – Pale Green

  6028 – Pine Green

  6033 – Mint Turquoise

  7000 – Squirrel Grey

  7001 – Silver Grey

  7002 – Olive Green

  7003 – Moss Green

  7004 –  Signal Grey

  7005 – Mouse Grey

  7006 – Beige Grey

  7010 – Tarpaulin Grey

  7011 – Iron Grey

  7012 – Basalt Grey

  7015 – Slate Grey

  7016 – Anthracite Grey

  7021 – Black Grey

  7022 – Umbra Grey

  7024 – Concrete Grey

  7030 – Stone Grey

  7032 – Pebble Grey

  7033 – Cement Grey

  7034 – Yellow Grey

  7035 – Light Grey

  7036 – Platinum Grey

  7037 – Dusty Grey

  7038 – Agate Grey

  7039 – Quartz Grey

  7040 – Window Grey

  7042 – Traffic Grey A

  7043 – Traffic Grey B

  7044 – Silk Grey B

  7045 – Tele Grey 1

  7046 – Tele Grey 2

  7047 – Tele Grey 4

  8002 – Signal Brown

  8004 – Cooper Brown

  8014 – Sepia Brown

  8016 – Mahogany Brown

  8019 – Grey Brown

  9001 – Cream

  9002 – Grey White

  9003 – Signal White

  9006 – White Aluminium

  9007 – Grey Aluminium

  9010 – Pure White

  9016 – Traffic White

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