Description
Sikalastic®-487 is a high performance, hand-applied, low VOC, moisture-curing single component elastomeric polyurethane waterproofing membrane.
USES
Sikalastic®-487 is designed for the following waterproofing applications: Under-screed in wet areas Under-screed on balconies Non-UV applications Podiums and decks
CHARACTERISTICS AND ADVANTAGES
Low VOC, complies with Green Star requirements Quick tack-free surface High resistance to stagnant water High resistance to puncture Excellent crack bridging capability High elongation, Class III membrane >300% according to AS/NZ4858 Single component, ready to use
COLOUR
Grey
PACKAGING
15 Litres
Relative air humidity
Between 20 and 90%
Substrate temperature
+5 to +35°C
Substrate moisture content
Up to 5%
Waiting time to overcoating
In normal conditions, Sikalastic®-487 can be recoated with another layer of Sikalastic®-487 after one night and within 2 days. In case of rain or if the recoating interval was exceeded, light abrasion and reactivate Sikalastic®- 487 with Sika Thinner C or for the best results remove the existing coating back to substrate and re-apply.
Drying time
24 hours for full cure.
SUBSTRATE PREPARATION
Surface must be clean, sound, smooth and dust-free as well as oil-free. A layer of diluted Sikalastic®-487 membrane (with 10% Thinner C) can be used as a primer for dry and contaminants-free concrete. In the case of high porosity, it is recommended to use an epoxy primer. Please see ‘priming’ section below for further information.
APPLICATION
PRIMER: CONSUMPTION RATE:
Sikalastic® PU Primer 4m2 per Litre
Sikalastic® Moisture Seal Up to 10m2 per Litre (refer to pds)
Sikalastic®-487 (10% diluted Thinner C) 4m2 per Litre
NOTES: The above consumption rates are indicative only and can fluctuate depending on porosity of surface being primed.
MEMBRANE APPLICATION:
Sikalastic®-487 can be applied with a brush or a roller to the desired thickness.
2 coats of 680 micron (WFT) are required to achieve a dry film thickness of 1.2mm.
Sikalastic®-487 can be subject to light foot traffic and screed applications after 24 hours.
CLEANING OF EQUIPMENT
Reusable tools should be cleaned carefully with Sika Thinner C before curing.
Need help choosing the right waterproofing membrane? Contact us today for expert advice and the best deals or explore more options at Sydney Industrial Coatings!
Sikalastic 487 Technical and Safety Data Sheets
![]() |
![]() |
Sikalastic®-487 – Sika’s Website
Reviews
There are no reviews yet.