Welcome to Imerys Performance Minerals

Caulks, Putties and other Chemistries

Caulks, Putties and other Chemistries

Imerys supplies a wide range of mineral solutions suitable for improving the properties of caulks, putties, hotmelts, butyl seals and bitumen membranes.

Imerys minerals: 

  • Improve sandability due to their natural softness
  • Improve adhesion
  • Enhance elasticity and cracking resistance
  • Improve rheology
  • Improve storage stability
  • Make spreading easier
  • Extend pot life
  • Are natural, environmentally friendly solutions


Our Drikalite®, #8 White® , Microwhite® 100 and Camelwite® ground calcium carbonates (GCC) are cost-effective extender solutions for putties.

Body Fillers

Imerys has a range of minerals such as Kaolin and Mica which are excellent fillers for polyester putties and automotive body fillers as well as excellent multifunctional fillers in polyester mastics. 

We recommend:

  • NeoGen® 2000
  • 4-K


Hotmelt adhesives

Our GSP-30 ground calcium carbonate (GCC) and Paragon (Air Float Kaolin)  are cost-effective solutions, prized for the low decantation properties they offer to hot melt adhesives.

Butyl mastics

We recommend our cost-effective PolCarb® GCC range and Luzenac soft talc solutions for butyl sealants. Luzenac is particularly recommended for their anti-scratch properties in IG glazing primary seals.

Bitumen membranes

Bitumen is an effective glue and unlike most glues is 100% waterproof.  Bituminous membranes are perfect for waterproofing roofs, basements, below ground structures, bridges and other structures.

We recommend:

  • Saca B and Sac 200Z  kaolin ranges provide superior oil absorption and sound damping in bitumen membranes
  • SuperSeal® an air float kaolin offers excellent rheology control
  • 60-S, 40-S, 20-L, 350PO and 325HK mica range provides flatness and barrier properties
  • #10 white GCC provides reflectivity and improves rheological control

We offer a full range of custom formulation and technical and process support services to help you match the right mineral grade to your application requirement.

Please contact us, we will be only too happy to help

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Adhesives, Caulks & Sealants