Gone are the days of one-size-fits-all concrete mould release agents.
Chryso South Africa has launched a new range of application-driven mould release agents for the concrete industry.
Hannes Engelbrecht, Chryso SA’s general manager for marketing, says the highly unusual and innovative aspect of the new ChrysoDem release agents is that they have been designed to meet the need of specific industries and applications.
“Choosing the appropriate release agent may be critical to the success of a project, as it affects both the quality and colour of the surface finish. The cost of a release agent is low in proportion to the formwork or mould itself, so simply choosing the cheapest release agent available on the market is false economy.
“The top quality release agents in the ChrysoDem range provide greater coverage, are easier to use and add consistent quality to the production line. This is important particularly in the precast industry, where high temperature steam curing forms a formidable challenge in the production process,” he explains.
“The new range is a revolutionary development for South Africa, long-awaited by industries which for years had to use one-size-fits-all mould release agents.”
Mould release agents are primarily used to assist in the clean, easy release of concrete from formwork, without damaging the concrete or moulds. The new ChrysoDem range features different types of release agents as required for moulds made of metal, wood, plastic, polystyrene, rubber, latex and fibreglass.
“The ChrysoDem range also includes ChrysoDem Bio 10, a vegetable-based, bio-degradable and non-toxic release agent which will not pollute the environment and has a low odour. It is therefore safe to use in confined spaces such as mining, tunnelling and any poorly ventilated area. Most of the other products in the ChrysoDem range are also safe to use, have a low odour, and comply with regulations for the transport and disposal of hazardous materials,” Engelbrecht adds.
ChrysoDemElio LSM significantly reduces blow holes because its low viscosity oil creates less surface tension against the sides of the mould and therefore allows air bubbles to escape. ChrysoDemElio SP can handle the high temperatures of steam curing and provides rust prevention, while ChrysoDem Oleo FW is a mineral-based release agent suitable for all types of formwork and ideal for formwork suppliers.
Other products cater for the heavy precast sector such as pipe manufacturing, light wet and dry precast demoulding operations and decorative concretes. A wax-basedversion, ChrysoDem WB, is ideal for wooden moulds and prevents the veneer on shutter boards from delaminating.
The ChrysoDem range is locally manufactured by Chryso SA at its production plants in Gauteng, KwaZulu-Natal and the Western Cape.
“There has been exceptionally positive response from the concrete industry to this new range, which Chryso SA is planning to export to the rest of Africa as well,” Engelbrecht states.
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The ChrysoDem range:
• Extends the life of the formwork or mould.
• Reduces the likelihood of surface damage to the concrete.
• Eliminates staining and colour changes.
• Allows plaster, paint and other coatings to be applied subsequent to the mould removal.
• Is water-repellent and not affected by rain.
• Has no effect on the hydration of concrete.
• Includes ready-to-use release agents which reduce the possibility of errors during mixing.
• Has a two-year storage life for virtually all the new release agents.