Hydroseeding a 1:2 Slope: SAP Rate, Mulch Ratio and the First Rain
2-3 kg of SAP per 4,000 L tank, 5-7% of mulch weight, tackifier last. Without a tackifier a 1:2 slope sheds the whole mat in a 40-minute rain.
Gel Under Mulch: Does the Mulch Still Earn Its Place?
Every landscape contract that specifies gel eventually gets the same question from the quantity surveyor: if the polymer is holding the water, why are we still paying for 80 mm of bark? It is a fair challenge worth about a third of the planting budget. The short answer is that the two materials bloc…
