Industrial Minerals
Adhesives & Sealants
Rheology control and volume in sealants, mastics and construction adhesives.
The problem
A sealant has to stay put on a vertical joint, gun out cleanly in the cold and not cost more than the competition. Filler choice drives all three.
What we supply
Talc and kaolin for thixotropy, calcite for volume, wollastonite where reinforcement is needed. Moisture held low, because in a polyurethane or silicone it is not a cosmetic problem.
Choosing a grade
| What you are solving | What we would quote | Why |
|---|---|---|
| Thixotropy, non-sag | Talc XT-500 | Platy structure builds yield stress |
| Volume at low cost | Calcite XC-800 | Low oil absorption, high loading |
| Reinforcement | Wollastonite XW-MAR | Acicular, raises modulus |
| Epoxy flooring | Quartz XQP-325 | Hardness and chemical resistance |
These are starting points, not prescriptions. Send your current material's data sheet and we will match it properly rather than guessing from a mesh number.
Minerals for adhesives & sealants
3 of the minerals we supply end up in this industry. Here is what each one is actually doing once it is in the mix.
- Talc — Thixotropy and volume in sealants and construction mastics.
- Calcite / Ground Calcium Carbonate — Bulk and rheology in sealants.
- China Clay (Kaolin) — Volume and rheology in water-based adhesives.
Talc
Soft, platy magnesium silicate. The workhorse extender in paint, plastics, paper and rubber.
Calcite / Ground Calcium Carbonate
High-brightness GCC. The cheapest way to add volume without losing whiteness.
China Clay (Kaolin)
Fine white aluminium silicate. Brightness and coverage in paper, paint and ceramics.
Every one of these has its own page with the grade ladder, the typical chemistry and the physical properties. If you already know the mineral and need the numbers, go straight there.
What we will ask you
- Chemistry: acrylic, PU, silicone, MS or epoxy
- Moisture ceiling
- Current filler and loading
- Monthly tonnage and delivery ZIP
Four answers are enough for a quote and a sample. We do not need a meeting first.
What you get back
- A delivered price per tonne or per pound to your ZIP code, not an FOB India number you have to convert
- A free sample of the grade we recommend, shipped from the United States
- The typical analysis and, with the sample, the actual mill test certificate for that lot
- A safety data sheet in US format before the material arrives
- A lead time you can plan a production run around
Working in adhesives & sealants?
Tell us the application and the tonnage. Quote and free sample back within one business day.