Tampico vs Sisal vs Polypropylene Brush Fill: Which to Choose
Comparison · 6 min read · updated 2026-10-24
Tampico and sisal are both agave fibres from the Americas, and polypropylene is the cheapest common synthetic brush filament. They turn up in overlapping places — scrub brushes, parts-cleaning brushes, polishing and finishing tools — so buyers often ask which to specify.
They are not interchangeable. Tampico is a soft-to-medium fibre that holds liquid; sisal is a stiff, coarse fibre mostly used in buffing and finishing rather than ordinary brushes; polypropylene is a uniform plastic that sheds water and costs little. Here is how they compare.
What each fibre is
You may also see other natural fills quoted: palmyra (a medium-stiff palm fibre from India for general floor sweeps), bassine (a stiff, coarse palm fibre for heavy floor cleaning) and union (typically tampico blended with palmyra). Each has its own stiffness, so ask for a sample before accepting a substitute. The three fills compared here are:
- Tampico (also called ixtle or istle): a stiff plant fibre from Mexican agave species, principally Agave lechuguilla of the Chihuahuan Desert. It has long been used as a substitute for animal bristle in brushes. Usually supplied natural white or dyed black or grey.
- Sisal: fibre from Agave sisalana, with Brazil the largest producer, followed by East African countries, China and Mexico. Stiff, strong and durable; its main industrial uses are rope and twine, and in brush-making it is best known in buffing wheels.
- Polypropylene (PP): an extruded synthetic monofilament with uniform diameter, made in any color and stiffness.
Side-by-side comparison
Natural fibres don't have datasheets like polymers do, so tampico and sisal are described qualitatively by fibre and brush suppliers. Treat heat and chemical claims as relative, and test with your solution.
| Property | Tampico | Sisal | Polypropylene |
|---|---|---|---|
| Feel / stiffness | Soft to medium | Stiff, coarse | Any — set by diameter |
| Water behavior | Porous; holds liquid | Absorbs and releases humidity | Absorbs <0.1% |
| Heat | Described as heat resistant | Not usually rated | Melts ≈160 °C (320 °F) |
| Chemicals | Acid and alkali resistant | Not commonly specified for chemicals | Resists most acids, bases, oils, solvents |
| Consistency | Natural variation | Natural variation | Uniform |
| Typical brushes | Scrub, parts-cleaning, applicator, polishing blends | Buffing wheels, finishing drums | Scrub, broom, wafer, roller, food brushes |
Where tampico is the right fill
- Applying or working liquids: the porous fibre holds water, solvent or cleaner and releases it as you scrub.
- Hot work: suppliers describe tampico as heat resistant, whereas PP softens and melts at a low temperature.
- Acid and alkali cleaning, such as acid washing.
- Gentle parts cleaning: more bite than fine nylon but kinder to finished surfaces than wire. See our tampico parts cleaning brush.
- Fine polishing floor brushes, where tampico is blended with fine abrasive nylon.
Where sisal is the right fill
Sisal's stiffness makes it the classic material for the cut stage of metal polishing: a sisal buffing wheel with compound levels scratches before a softer cloth wheel finishes the job. It is also blended into finishing drums, such as our sandpaper and tampico/sisal sanding drum for furniture.
Sisal is rarely the right choice for an ordinary scrub brush. For the buffing choice specifically, read sisal vs cloth buffing wheels.
Where polypropylene is the right fill
Avoid PP on hot surfaces and in freezing conditions — homopolymer PP becomes brittle below about 0 °C. PP also takes a set if left bent. Browse industrial cleaning brushes for PP options.
- Wet cleaning where you want the brush to shed water, dry quickly and stay stiff.
- Price-sensitive volume brushes: PP is light (about 0.9 specific gravity), so less material fills the same brush.
- Hygiene-sensitive areas, where a non-absorbent synthetic is easier to keep clean than natural fibre.
- Consistency across batches: same diameter, color and stiffness every time.
Cost and life
PP is usually the cheapest fill per brush and the most consistent. Tampico costs more and varies with harvest, but it does jobs PP cannot — hot, acid or liquid-holding work. Natural union blends (tampico with palmyra) are valued in dry sweeping for dust control but generally have a shorter life than synthetics.
For abrasive or long-life scrubbing, neither natural fibre competes with nylon; compare the synthetics in nylon vs polypropylene scrub brushes.
Decision checklist
- Is the brush applying or holding a liquid? → Tampico.
- Is it hot (hot water, hot compound, hot surface)? → Tampico or nylon, not PP.
- Is it a polishing cut stage? → Sisal wheel.
- Is it wet, cold-water cleaning at the lowest cost? → PP.
- Food or hygiene rules? → Synthetic, with the right resin certification for your market.
- Send the use, size and quantity through Request a Quote.
Frequently asked questions
- What is tampico fibre made from?
- Tampico (ixtle) comes from Mexican agave plants, mainly Agave lechuguilla. It is a natural, porous plant fibre used as a substitute for animal bristle.
- Is tampico heat resistant?
- Brush suppliers describe tampico as heat, acid and alkali resistant, and tampico brushes are used with hot compounds. Polypropylene, by contrast, melts at about 160 °C.
- Is sisal used for brushes?
- Mainly for buffing wheels and finishing tools. Sisal is stiff and coarse, which suits the cut stage of polishing but makes it a poor choice for ordinary scrub brushes.
- Is tampico better than polypropylene?
- For hot, acid or liquid-holding jobs, yes. For cheap, quick-drying, consistent wet cleaning, polypropylene is usually the better choice.
Related products
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