This guide is intended to assist users, specifiers and applicators of MASTERTOP® and UCRETE® floors plus MASTERFLEX® 460 joint sealant to select the most appropriate product for the chemical exposure conditions likely to be encountered. The data in this guide is based on immersion tests carried out in our laboratories and on practical experience gained from case histories over 25 years.
Three categories of resistance are used:
R: Resistant (subject to reasonable standards of housekeeping)
LR: Limited resistance (occasional spillage tolerated if the floor is washed down or the spillage evaporates quickly)
NR: Not resistant (rapid and severe attack even by small spillages)
Users should also be aware of the following:
The data refers to floors only:
They do not apply to materials used as linings and subject to total or partial immersion. Resistance in such cases is likely to be more limited and your local basf cc office should be consulted before materials are proposed for such applications.
Staining and discolouration:
Many chemicals will stain or discolour the surface of flooring and joint sealants without causing any deterioration or loss of properties.
Solvents:
Many aggressive solvents will affect flooring on long-term exposure but are so volatile that spillages evaporate before any damage occurs. If there is any doubt, always contact your local BASF Construction Chemicals office.
Maximum service temperature
Each grade of flooring has a maximum service temperature; this is specified in the individual Product Data Sheet. As the integrity of the floor depends on many factors, the maximum service temperature specified in the individual Product Data Sheet should be respected.
Joint sealants
Because of their flexibility, all joint sealants have lower long-term chemical and heat-resistance than flooring. It is recommended that joint sealants should be inspected on a regular basis and replaced as soon as signs of deterioration are noticed.