General Purpose Silicone Sealants

Alstone General Purpose GP-300 Silicone Sealant is a high quality one-part, acetoxy cure silicone sealant for interior grade gap filling applications. It is a cost effective silicone sealant for general purpose applications. It is a RTV moisture cure sealant, low in odor and water Resistant. It provides a flexible bond and will not harden or crack.

It offers long term durability in a range of general sealing or glazing applications on glass, aluminum, painted surfaces, ceramics, fiberglass, and non-oily wood. It can be used anywhere where there is a gap present.

Alstone Industries has in depth studied Indian weather conditions and Indian fabricators mindset and after analyzing each and every aspect come with a unique product that will suit all conditions- GP 300.

Alstone general purpose sealant is manufactured from pure silicone polymer and its elongation and tensile strength is better due to virgin polymer. Alstone General Purpose silicone is clear and gives amazing finish as no oil oozes out from it and it gives very low acidic smell which makes it easy to apply. Alstone general purpose sealant GP-300 provides you superior adhesion and is completely VOC free product.

In India, Alstone Silicone has seen a rapid increase in its market share which is reflection of its growing demand and conviction among customers that it is the best product.


  • Seal grooves of kitchen hardware especially sinks.
  • Seal grooves in the bathroom especially the Bath Tub and Washbasin.
  • Seals groove in the interior wood work.
  • Building and construction joints
  • Glazing and connection joints
  • Elastic joints in coldstore and container applications
  • Sealings in air conditioned systems


  • Very easy application
  • Permanent clear, UV-resistant
  • Stays elastic after curing
  • Very good adhesion on many materials
  • General sealing for automotive applications

Product Features

  • Alstone General Purpose GP-300 Silicone Sealant is a high-quality, elastic one-component joint sealant based on silicones.
  • It used for Building and construction joints.
  • It is used for Glazing and connection joints.
  • It is used for Elastic joints in coldstore and container applications.
  • It is used for sealing in air conditioned systems.
  • It is very easy to use product.
  • It is Permanent clear and UV-resistant.
  • It stays elastic after curing.
  • It has very good adhesion on many materials
  • It can be termed as general sealing for automotive applications.

Technical specifications:

Properties Value
Packing 280ml x 24 cartridges per box
Color black, white, clear