Precise control of the pot life of a mix is a key factor in the production of complex gypsum products, decorative stone, mouldings, and repair compounds. Excessively rapid setting leads to defects and limits moulding possibilities, whereas a correctly chosen retarder provides a technological time margin without compromising strength. Alventus supplies effective set regulators — from a ready-to-use complex gypsum converter to pure tartaric acid, which enables flexible management of hardening kinetics.
Our Set Retarders
Choose a product to go to its page with detailed characteristics, dosages, and application guidance.
- Gypsum converter SVV-500 – a ready-to-use complex additive that significantly increases the strength of gypsum products. Its laboratory-balanced formulation requires no additional strengthening agents. It provides a slight, predictable set delay, giving extra time for moulding complex and thin-walled elements. Compatible with pigments and additional retarders (tartaric acid, citric acid). Non-toxic and odourless. Used in the production of decorative stone, 3D panels, mouldings, garden figures, and any gypsum products with enhanced requirements for hardness and abrasion resistance.
- Tartaric acid (L-(+)-tartaric, E334) – an organic dicarboxylic acid of natural origin, appearing as a white crystalline powder without odour. In construction chemistry, it acts as an effective set retarder for gypsum and cement mixes. Unlike citric acid, tartaric acid does not disrupt the gypsum crystal lattice, preserving the maximum grade strength and hardness of the finished casting. By binding calcium ions, it slows down hydration and provides anywhere from several minutes to tens of minutes of additional working time for pouring and moulding. The food additive E334 is approved worldwide, is safe, and is easily metabolised by the body.
Alventus – Your Supplier of Set Retarders
With us, you get a consistent pot life of the mix, predictable product strength, and a reduction in technological waste.
- Warehouse programme – gypsum converter SVV-500 and tartaric acid are kept in stock for prompt dispatch.
- Laboratory-confirmed effectiveness – we supply products with proven performance that do not require experimental dosage trials on site.
- Personalised commercial terms – pricing and discount systems are tailored individually, based on your volumes and purchasing frequency.
- Safety and standards compliance – tartaric acid is certified as food additive E334; the gypsum converter is classified as hazard class 3 (non-toxic, non-flammable).
- Controlled logistics – our own delivery service ensures sealed packaging, protection from moisture, and cargo tracking along the entire route.
- Technical support – we help you choose the optimal retarder type and its dosage for a specific binder, required working time, and product type.
Manage Setting Time with Minute Precision
Leave a request on the website, and we will help you select the right retarder, calculate the dosage for your formulation, and prepare a commercial offer.
