ELASTOSIL® 6103 P is a one-component, acid-curing, silicone sealant for general purpose sealing in do-it-yourself applications especially for sanitary areas.

ELASTOSIL® 6103 P cures at room temperature in the presence of atmospheric moisture to give a permanently flexible silicone rubber.


  • suitable for use in sanitary areas
  • non-sag
  • readily gunnable both at low (+5 °C) and high (+40 °C) temperatures
  • rapid crosslinking: quickly becomes tack-free and crack resistant
  • flexible at low (- 40 °C) and high temperatures (+ 100 °C) following cure
  • excellent adhesion to glass, vitrified surfaces, ceramic tiles and most coatings


All the information provided is in accordance with the present state of our knowledge. Nonetheless, we disclaim any warranty or liability whatsoever and reserve the right, at any time, to effect technical alterations. The information provided, as well as the product's fitness for an intended application, should be checked by the buyer in preliminary trials. Contractual terms and conditions always take precedence. This disclaimer of warranty and liability also applies particularly in foreign countries with respect to third parties' rights.

Application fields

  • DIY applications (car, boat, caravan, house)
  • Sealing in sanitary areas



The substrate areas that will be in contact with the sealant must be clean, dry and free of all loose material such as dust, dirt, rust, oil and other contaminants. Non-porous substrates should be cleaned with a solvent and clean, lint-free, cotton cloth. Remove residual solvent before it evaporates with a fresh clean, dry cloth.

It is the user's responsibility to test the compatibility of the sealant with the adjoining materials. Incompatible substances like coating materials (paints, varnishes and glazes) or organic plasticizer containing rubbers (EPDM, butyl and neoprene) can lead to discoloration or other impairments like loss of adhesion of the sealant. Materials in direct contact with the applied sealant like cleaning agents and materials in indirect contact like gaseous emissions can damage the sealant in its function or change its appearance. Because of the multitude of these materials. Wacker cannot make a general statement to the compatibility of materials with the sealant. In case of doubt the user shall conduct appropriate preliminary tests.

The time until complete curing may be extended at lower temperature, lower humidity, increasing film thickness or by low volume of air exchange.

The use of tooling agents should be avoided if possible. Otherwise, water or a diluted solution of a little neutral soap or alcohol in water should be sparingly applied.



is certified and classified according to

  • EN 15651-1 - Class 12,5E
  • EN 15651-2 - Class G-CC



ELASTOSIL® 6103 P exhibits excellent primerless adhesion to most non-porous siliceous materials (e.g. glass, tiles, ceramics, enamel, glazed tiles) as well as painted, laminated and coated wood.

Users must carry out own tests due to the great variety of substrates. The adhesion can be improved in many cases by pretreatment of the substrate with a primer.


Restrictions on use

ELASTOSIL® 6103 P is not compatible with carbonate containing stone e.g. marble and limestone, as the product releases acetic acid during vulcanization.

ELASTOSIL® 6103 P should not be used on substrates such as concrete, fibrous cement and mortar, as the product releases acetic acid during curing.

ELASTOSIL® 6103 P should not be used in contact with metals such as lead, copper, brass or zinc due to corrosion.

ELASTOSIL® 6103 P may be discolored in contact with some organic elastomers, e.g. EPDM and neoprene.

ELASTOSIL® 6103 P is not recommended for sealing of aquarium or for long term use under water.

ELASTOSIL® 6103 P should not be used on pre-stressed polyacrylate elements as it may cause environmental stress cracking.

ELASTOSIL® 6103 P must not be used for insulated- and structural glazing or bonding.

ELASTOSIL® 6103 P is not suitable for food grade applications where the joints are likely to come in contact with food.

ELASTOSIL® 6103 P is not suitable for use as a mirror adhesive.


ELASTOSIL® 6103 P is usually supplied in standard size cartridges that fit all standard caulking guns.


The 'Best use before end' date of each batch is shown on the product label. Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

Sales and support

Wacker Chemical Corporation
3301 Sutton Road
Adrian, MI 49221-9397
United States
+1  888  922-5374 (Phone)

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