USES - POSTFIX is a specially designed fast setting concrete, ideally suited to erecting all types of posts, fence posts, fence post spikes including wood, metal and concrete. BENEFITS - Specially formulated using low CO2 cement, Aggregate mix to ensure good initial support for the post and sets in as quick as five to ten minutes. BLEND - This is a factory-made blend, it consists of cement, aggregates, sands and specially formulated additives making a strong hold for all posts. PRODUCT DESCRIPTION - 1 x 20kg water resistant bag, quick and easy to use, no need to mix first, just add water. A rapid setting time of 5 - 10 mins with a strength of 20N/mm2 after 28 days. LAETO BUILD IT RANGE - Unleash your construction potential with Laeto's Build It Range! Our cement, mortar, and .