UCAR™ Latex UCAR™ Latex D 161 - Mielco

Product Product Information
Information
UCAR UCAR Latex Latex D 161
For For highly highly flexible flexible cement cement modified modified building building products
products
UCAR Latex D 161 is a styrene-acrylic copolymer designed for modifying cement to give good flexibility. This
latex has excellent water and alkaline resistances making it suitable for flexible and water-resistant two-component
mortars. It is also applicable in the production of crack-filling systems, flexible membranes, and ceramic
tile adhesives.
Typical ypical ypical properties
properties
UCAR Latex DD D 161
Solids
56.0%
pH
8.5
Viscosity (Brookfield LVT spindle 4 @ 60 rpm)
200 - 1200 mPa.s
MFFT

Recommended Recommended formulations
formulations
Flexible Flexible Flexible cementitious cementitious waterproofing waterproofing membrane membrane CWM991202
CWM991202
Material Material
weight
weight
Dry premix
Portland cement 50.00
Calcium Carbonate (600 mesh) 40.00
Sand 10.00
Total otal 100.00
100.00
Aqueous phase
UCAR Latex D 161
Nopco NXZ 0.38
Total otal 100.00
100.00
Mix the dry premix portion with the aqueous phase with agitation to obtain a homogenous slurry mixture
Properties Properties Properties Properties Properties
• Brookfield viscosity (spindle 4 @ 60 rpm): 8000 cps
• Tensile strength (after 7 days ambient curing): 2.5 N/mm2 • Elongation at break (after 7 days ambient curing): 360%
• Tear resistance (ASTM D-624): 9.8 KN/m
• Water vapour permeability (based on ASTM E96, desiccant method at 90% R.H. at 38°C = 15g/m2 /day)
• Adhesion to steel (pull-off strength), ASTM D-4541:4.5 N/mm2 This is a 2 component water proofing system consisting of latex and premixed powder which includes cement and sand. It is flexible
and fills hairline cracks (up to 2 mm). It allows moisture vapour transmission or "breathing ability" which is necessary
over fresh concrete or screeds. It has excellent adhesion to concrete, brick, screed, stone, wood, etc.
It is easily applied using roller or stiff bristle broom/brush onto both horizontal and vertical surfaces.
Formulation Formulation guidelines
guidelines
• A large amount of Portland cement in the dry mix results in a harder and less flexible membrane.
• Larger amounts of filler such as calcium carbonate in the Portland cement give better tensile strength and
elongation than coarse fillers such as sand.
• Finer grades of calcium carbonate (e.g., 600 mesh) in the Portland cement give higher viscosity than coarser
calcium carbonate (e.g., 325 mesh).
• Larger amounts of UCAR Latex D 161 give better elongation, adhesion and waterproofing to the membrane.
• Diluted acrylic thickener can be used to increase viscosity and give a shear-thinning rheology.
• Typical ratio by weight of dry premix to aqueous phase ranges from 1:1 to 2:1.
• Dry premix is added slowly into the aqueous phase with good agitation and this mixture must be applied within
its potlife.
• Usual application of this slurry mixture is by brushing or roller in at least 2 coats to give dry film thickness of
about 1.5 - 2 mm.
*Trademark of The Dow Chemical Company
309-00332
UCAR Latex D 161 / UES Europe
99.62
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Exterior Flexible
Exterior
Flexible
Exterior Flexible skim
wall skim
wall skim
wall paint paint coat coat
EXT EXT SC991202 SC991202
30/1
30/1
Joint Joint compound compound JC991209 JC991209
JC991209
Material Material Material
weight
weight
Aqueous Mix
Water 21.70
UCAR Latex D 161
23.28
Nopco NXZ 0.20
Acticide EP-Paste 0.10
Powder premix
Calcium Carbonate (325 mesh) 16.78
Talc 35.54
UCAR POLYPHOBE TR-115 1.20
Water 1.20
Total otal otal 100.00
100.00
Premix the calcium carbonate and talc.
Blend the aqueous mix.
Load the dry premix powder to the aqueous mix.
Add the solution of POLYPHOBE to the mixture.
This is a pasty mixture used as skimming plaster for
dry and damp interior and exterior, wall and ceiling
surfaces. It has good adhesion over common
substrates such as concrete gypsum board,
masonry and cement backer board.
The skim coat has good water resistance and
alkali resistance compared to conventional skim coat.
*Trademark of The Dow Chemical Company
UCAR Latex D 161 / UES Europe
Material Material
weight
weight
Aqueous Mix
Water 14.11
TERGITOL NP-40 0.93
Sodium Benzoate 0.07
Acticide EP-Paste 0.08
Propylene Glycol 0.22
UCAR Latex D 161
Powder premix
13.69
Calcium Di-Sulphate 2.94
Calcium Carbonate 64.58
Mica 2.19
Attagel 40 0.40
Talc 0.79
Total otal 100.00 100.00
100.00
Load the ingredients in order for the aqueous mix.
Add the powder mix to the aqueous mix.
This mixture gives a smooth finish joint mixture which is
able to seal the gaps and provide resistance to shrinkage
Tile Tile converter converter TC991201
TC991201
under normal conditions.
Material Material
weight
weight
UCAR Latex D 161
7.84
Water 9.48
TRITON X-405 0.20
Portland cement 20.62
Coarse sand (

Raw Raw Material Material List
List
Acticide EP-Paste Thor Chemicals
Attagel 40 Lawrence Industries
Nopco NXZ Cognis
UCAR POLYPHOBE TR 115 The Dow Chemical Company
TERGITOL NP-40 The Dow Chemical Company
TRITON X-405 The Dow Chemical Company
NOTICE NOTICE: NOTICE No freedom from any patent owned by Seller or others is to be inferred. Because use conditions and applicable laws
may differ from one location to another and may change with time, Customer is responsible for determining whether products and
the information in this document are appropriate for Customer’s use and for ensuring that Customer’s workplace and disposal
practices are in compliance with applicable laws and other governmental enactments. Seller assumes no obligation or liability for
the information in this document. NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED.
Published March 2004
(Supersedes edition of September 2001).
UCAR Latex D 161 / UES Europe
*Trademark of The Dow Chemical Company
309-00332
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