®

Betol HC Liquid Hardener for Silicate Binders Chemical description

Betol HC is an organic hardener susceptible to acids and alkalis. It can be applied in silicate based coating, binding and gluing systems.

Mode of Action

Betol HC is saponified by alkali silicates. Due to the thus induced alkali consumption the ratio SiO2 : M2O of the binder is raised resulting in a strong viscosity increase up to solidification and hardening of the binder. The curing time depends on the added amount of Betol HC and the system temperature.

Specification (average values)

Density (20°C): Viscosity (20°C): Solubility in water: Aspect: Odour:

approx. 1,20 g/cm³ approx. 3 mPas approx. 20 % colourless liquid slightly fruity

042 *) 053 *)

*) Internal method code – description available on request

Properties

-

Accelerates the setting and curing process of silicate binders, Betol HC is decomposed (saponified) by acids and alkalis, Non toxic, Biodegradable and ecocompatible.

Application

Betol HC is mixed with silicate binders, glues or coatings as a hardener immediately before application. Betol HC is applied in combination with sodium silicate solution for the consolidation of soils. The usually added quantities are between ca. 3 and 5 weight % relative to the silicate binder content. (Temperature dependent / preliminary tests necessary).

Note

Betol HC is only slightly hazardous for ground water.

Storage

Betol HC must be protected from frost. Storage stability in closed original containers at least 12 months.

Labelling / Safety

Labelling according to EC Guidelines and German Ordinance on Hazardous Materials (GefStoffV): Xi Irritant R 36

Any technical application recommendations, verbal or in writing, provided by us in good faith to our customers/users for their assistance and on the basis of our experience and present state of knowledge are absolutely noncommittal. This also applies to any existing industrial property rights or foreign statutory provisions. Any recommendation of ours can therefore not be regarded as a legal relationship or contractual commitment , nor does it establish any sales contract deed of convenant. It is the buyer’s responsibility to examine the suitability of our products for their intended application.

Packaging

30 kg can 240 kg drum

10/2006

Woellner GmbH & Co. KG . Woellnerstr. 26 . D-67065 Ludwigshafen Telefon +49 (0)6 21/54 02-0 . Telefax +49 (0)6 21/54 02 -411 Email [email protected]