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Sanitary Silicone Sealant PENOSIL 326 Multipurpose Neutral Silicone 300ml

PENOSIL Sanitary & Food-Grade Silicone 326 is a multipurpose neutral silicone for sanitary applications, finishing and ventilation sealing works. Forms a waterproof and mould-resistant seal on a wide range of materials.

  • 300ml
  • Mould, UV and ageing resistant
  • Highest sanitary class: XS1
  • Household chemical resistant
  • Non-corrosive to metals
  • Non-sagging
  • Excellent workability

ADHERES TO:  Concrete, Brick, Masonry, Wood, Aluminium (lacquered, anodized, painted), Galvanized steel, Glass, Ceramics, PVC, Most plastics

APPLICATION: Cut the tip of the cartridge. Screw on the nozzle and cut an opening at a 45° angle which is slightly larger than the joint to be sealed. Place the cartridge into a sealant gun. Apply the sealant by keeping an even pressure at the gun trigger and smoothly dragging the nozzle along the joint. Remove the excess sealant and smoothen the surface with a suitable tool.

SKU PENOSIL Sanitary Silicone Categories , ,


Delivery Information:
Tracked 48 (Despatched generally within 1-2 days)
– from £3.95*
Tracked 24 (Despatched generally within 1-2 days) – from £5.95*
* Prices vary dependant on location and products ordered.

Click & Collect – from Middlesbrough, TS3 8AN.
Despatch Times & Restricted Items.

Orders dispatched generally within 24/48 hours (Mon-Fri Unless Stated Otherwise)


  • Surfaces to be sealed must be clean, dry and free from any dust, loose particles, oil and old sealant residues. Non-porous surfaces should be cleaned with solvent and a clean, non-fluffy cotton cloth. Solvent excess should be removed with a clean cloth.
  • If needed, cover the adjacent surfaces with masking tape. For wide joints, use a backer rod to ensure the joint’s correct thickness and shape. Ensure sufficient ventilation in the working area.
  • During the curing process, make sure that sealed surfaces stay clean and are not under mechanical stress.
  • Due to the wide variety of construction materials, we recommend a preliminary compatibility test.
  • Application temperature between +5°C to +40°C.


  • Can not be applied on bitumen or on building materials which might bleed oils, plasticizers or solvents (e.g. natural rubber, chloroprene or EPDM).
  • Does not adhere to polyethylene (PE), polypropylene (PP) or PTFE (Teflon®).
  • Do not use at temperatures below +5 °C.
  • Not recommended for sealing natural stone surfaces e.g. marble and granite.
  • Can not be used as mirror adhesive.
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Monday 7:30 AM to 5:00 PM
Tuesday 7:30 AM to 5:00 PM
Wednesday 7:30 AM to 5:00 PM
Thursday 7:30 AM to 5:00 PM
Friday 7:30 AM to 5:00 PM
Saturday 8:00 AM to 4:00 PM
Sunday Closed
Bank Holidays Closed

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Sanitary Silicone Sealant PENOSIL 326 Multipurpose Neutral Silicone 300ml

Discontined Products

The product is no longer available and has been set to “Discontinued”.

We will no longer be receiving stock of this item. Please contact us using the “Got a question” button on the product page for an alternative option.

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We endeavour to respond to all enquiries within 4-6 hours (during working hours) however on some occasions this may take a little longer.

Due to length & size restrictions with our delivery partners, we are currently only able to deliver certain items to the following postal areas:

  • All TS postcodes
  • All NE Postcodes
  • All DL Postcodes
  • All DH Postcodes
  • All SR Postcodes

We are looking into increasing our postcode range gradually with our own fleet of vehicles.
Should you not want to opt for a delivery service, please be aware Click and Collect is still available on all of our items.

We aim to despatch all of our orders within 24-48 hours of order confirmation, during peak times or bank holidays this despatch time can occasionally be increased.

Should you have any queries regarding this please don’t hesitate to call our sales team on 01642 455945.


We aim to reply to you either via email or phone within 24 hours Monday to Friday.