Custom Bespoke Composite Doors & Aluminium and UPVC Panels
PENOSIL 342 Cleanroom Silicone (6x300ml)

PENOSIL 342 Cleanroom Silicone (6x300ml)

  • PENOSIL
  • PCRD1709
  • In Stock
  • £27.59

  • Exc. VAT: £22.99
- OR -


PENOSIL Cleanroom Silicone 342 – 6 Pack (6 x 300ml)
Neutral-Cure Alkoxy Silicone – High Sanitary Class, Mould-Resistant & Low VOC PENOSIL Cleanroom Silicone 342 6 pack is a professional-grade, neutral-cure silicone designed for hygienic sealing in cleanrooms, cold storage, laboratories, healthcare facilities, bathrooms and other wet or humid environments.

Its low-VOC, mould-resistant formula ensures long-lasting elasticity and strong adhesion to a wide range of surfaces, making it ideal for both interior and exterior applications. This 6-pack size is perfect for DIY enthusiasts, smaller projects, or trial installations while still providing professional performance.

Pack Contents

  • 6 x 300ml PENOSIL Cleanroom Silicone 342
  • Single Units and Trade Boxes also available 
  • Ideal for multiple applications and projects
Key Features
  • White
  • High sanitary class: S-XS1, mould-resistant
  • Permanently elastic with ±25% movement capability
  • Excellent adhesion to glass, tiles, aluminium, galvanised steel, PVC, varnished wood and most plastics
  • Low odour, low VOC for safe indoor use
  • Suitable for interior and exterior applications
  • Neutral-cure alkoxy formulation
Ideal For
  • Sealing joints in cold storage rooms, kitchens and bathrooms
  • Laboratories, cleanrooms and healthcare facilities
  • Shower enclosures and wet or humid areas
  • Projects requiring durable, hygienic, mould-resistant sealing
Why Buy This 6 Pack?
The 6-pack offers an ideal quantity for smaller projects, DIY use, or professional trial applications. PENOSIL Cleanroom Silicone 342 delivers hygienic, long-lasting, flexible seals in areas where cleanliness and mould resistance are essential. Its professional-grade formulation ensures reliable adhesion and performance on a wide range of surfaces.

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Images are for reference only, showing products from different angles. The quantity shown may not reflect what you purchase, usually only one item is supplied unless stated otherwise.

Any advice is for general guidance only. We cannot guarantee products will meet your specific needs or usage. Please check all measurements and specifications before purchase, as we are not responsible for incorrect advice or items ordered in error. Return costs in such cases are the customer’s responsibility.