Have a question? Use Ask Humboldt > or call Sales at 1.800.544.7220
Measures friction (skid resistance) on flat, cambered, or gradient road surfaces.
Polishes samples of aggregates, simulating actual road conditions.
Cart Subtotal (1 ):
The following items were already in your cart and have had their quantity increased. If you did not intend
for this, we recommend that you edit your shopping cart.