Industrial Minerals
Rubber
Semi-reinforcing fillers, dusting agents and cost control in moulded and extruded goods.
The problem
A rubber compounder is balancing cost against cure behaviour, tack and the mechanical property that the part is sold on. Fillers are the biggest lever and the easiest way to ruin a batch.
What we supply
Talc as a semi-reinforcing filler and anti-tack dust, kaolin where you want more reinforcement, barytes where mass is wanted. Low moisture, consistent fineness, no surprises in the mill.
Choosing a grade
| What you are solving | What we would quote | Why |
|---|---|---|
| Semi-reinforcing filler | Kaolin XK-Ceramic | Better reinforcement than talc |
| Anti-tack dusting | Talc XT-200 | Low abrasion, does not mark the part |
| Weight and cost | Barytes XR-Paint | High density, inert |
| Barrier in sheeting | Mica XM-D200 | Platy, slows permeation |
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 rubber
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 — Semi-reinforcing filler and anti-tack dusting agent.
- China Clay (Kaolin) — Semi-reinforcing filler, particularly in wire and cable compounds.
- Barytes (Barite) — Weight and cost control in moulded goods.
Talc
Soft, platy magnesium silicate. The workhorse extender in paint, plastics, paper and rubber.
China Clay (Kaolin)
Fine white aluminium silicate. Brightness and coverage in paper, paint and ceramics.
Barytes (Barite)
High specific gravity barium sulphate. Drilling mud weighting and sound-deadening fillers.
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
- Elastomer and cure system
- Current filler and loading
- Hardness and tensile targets
- 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 rubber?
Tell us the application and the tonnage. Quote and free sample back within one business day.