Strengthening additives for hobby concrete

This strengthening additive is an integrable fibreglass additive that can increase the strength properties of cement-based concrete, plaster and artificial stones.

Its dosage is 0.1-2% by weight, but even at the lower limit, you will realise a significant impact on strength.

You can also use it in combination with the anti-cracking additive, both of which do not weaken the effectiveness of the other.