SUITABLE
SUBSTRATES
| Concrete |
Concrete
Masonry |
| Cement Mortar Beds |
Cement Plaster |
| Ceramic Tile and
Stone |
Brick Masonry |
| Cement Backer Board** |
Cement Terrazzo |
| Gypsum Wallboard* |
|
*Interior Use Only
** When mixed with 150 Acrylic Latex or 442 Tuff-Flex admixture.
Consult cement backer board manufacturer for installation recommendations
and to verify acceptability for exterior use.
LIMITATIONS
Do not use 501 ClassicSet below 40ºF (4ºC) or above 95ºF
(35ºC). Use caution; do not allow mortar to freeze for the
first 72 hours. Do not soak tiles previous to installation. 501
ClassicSet must not be used to apply over asphalt sheeting, vinyl
covered wall board, Masonite®, cement asbestos board, metal,
glass, plastic, gypsum mortar beds or other unstable substrates.
Installations that will be continually wet like swimming pools,
fountains and gang showers, the completed installation should be
cured a minimum of 14 days and allowed to dry before exposure to
water. *When using 501 ClassicSet for vitreous tile and impervious
ceramic tile such as porcelain tile and mosaics, Mer-Krete recommends
Mer-Krete 150 Acrylic Latex or 442 Tuff- Flex as a direct replacement
for water. For white or light colored marbles use 501 ClassicSet
White mortar. Some dimensional stone tile like green and red marbles
may warp when installed with water based setting materials. These
water sensitive stone tiles should be installed with Mer- Krete’s
ProEpoxy. For use of 501 ClassicSet over additional substrates or
situations not mentioned in these instructions, contact Mer-Krete’s
Technical department.
TECHNICAL
INFORMATION
APPLICABLE STANDARDS
501 ClassicSet exceeds industry requirements ANSI A118.1 for Dry
Set Portland Cement Mortar and A118.4 for Latex Portland Cement
Mortar when mixed with Mer-Krete 150 Acrylic Latex or 442 Tuff-Flex
admixture. Follow TCA Handbook and ANSI A108.5 for installation.
COLORS
No color options.
PACKAGING
50 lb. (22.7 kg.) bag
INSTALLATION
SURFACE PREPERATION
All surfaces must be between 40ºF (4ºC) to 95ºF (35ºC)
and structurally sound (deflection not to exceed 1/360 of the span),
dry clean and free from oil, grease, wax, paint, old adhesives,
sealers and curing compounds. Any contaminates which inhibit proper
bond must be removed. Substrate preparation should be completed
following ANSI A108 AN-2 “General Requirements for Subsurfaces”.
All substrates should be plumb and true, surface deviation should
not exceed 1/2" in 10'. Movement (Expansion) joints should
be provided to comply with TCA method EJ 171. Cement Substrates
All concrete substrates should be cured a minimum of 28 days. Smooth
steel troweled floors should be roughed up using mechanical chipping,
scraping or shot blasting. Dampen porous or dry concrete previous
to installation of tile. Do not leave puddles or standing water.
Cement Backer Board
Follow cement board manufacturer’s instructions.
MIXING
In a clean container, add approximately 9 Pints (4.3 liters) of
clean potable water or Mer-Krete 150 Acrylic Latex or 442
Tuff-Flex admixture. Then add the contents of the 50 lb.
(22.7 kg) 501 ClassicSet mortar. Note: For improved bond strength,
flexibility, exterior installations and vitrified tile like porcelain
use
Mer-Krete 442 Tuff-Flex admixture in lieu of water.
Mix thoroughly by hand or with a slow speed mixer to a smooth, thick,
trowelable consistency. Allow mortar to slake for approximately
15 minutes, and then remix before using. Remix without adding additional
water, latex admixture or powder. Mortar consistency shall be such
that when applied with the recommended notched trowel to the substrate,
the ridges formed in the mortar do not flow or slump. During use,
stir mortar mix occasionally. Do not temper with additional admixture
or water.
APPLICATION
Apply mortar to the substrate with the flat side of the trowel,
with enough pressure to firmly work into the surface. With a notched
trowel, immediately follow with a heavier coat of material using
the appropriate trowel and enough mortar to provide 100% coverage
to the back of the tile. Some extruded or lug back tiles back-buttering
of tiles may be required. Do not spread more mortar then can be
covered in 20 minutes or before the mortar skins over. It is advised
that during the installation, remove a tile to insure the mortar
has not skinned over and check the tile and substrate mortar coverage.
Comb the mortar using an appropriate notched trowel in one direction.
Place tiles in mortar, slide back and forth perpendicular to the
ridges (NTCA “Trowel and Error”
method) to insure proper coverage. Do not adjust tiles set in mortar
after 15 minutes.
CLEANING
Water is all that is needed to remove any uncured mortar from tiles,
tools and equipment.
AVAILABILITY
Mer-Krete 501
ClassicSet is available at leading tile houses and construction
distributors. Contact Mer-Krete for the name of the nearest dealer.
WARRANTY
5 year, 10 year and Limited
Lifetime warranties are available. Contact Mer-Krete technical department
for specific warranty information. Mer-Krete Systems warrants that
this product meets applicable ANSI standards in force at the time
of manufacture. Mer-Krete will replace any product which proves
defective due to quality of ingredients used or due to the manufacturing
process itself. The warranty shall apply only if the product is
installed and used strictly in accordance with applicable industry
standards, specifications, and instructions provided by Mer-Krete.
Mer-Krete shall not be liable for misapplication, misuse or abuse
of the product, application or other event outside of its control.
Replacement of defective product or, at Mer-Krete’s option,
refund of the price of product of any defective item shall be the
buyer’s sole remedy under this warranty. Mer- Krete shall
in no event be liable for any damages in excess of the purchase
price of the defective product. MER-KRETE SHALL IN NO EVENT BE LIABLE
FOR ANY CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES.
This warranty constitutes the sole and exclusive warranty given
by Mer-Krete Systems in connection with this product, and Mer-Krete
Systems has authorized no person to make or give any other warranties,
or representations, oral or written, on its behalf. IN PARTICULAR,
THERE ARE NO IMPLIED WARRANTIES, INCLUDING WITHOUT EXCEPTION, WARRANTIES,
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. No modification
of this warranty in favor of any buyer shall be valid unless given
in writing and signed by an officer of Mer- Krete Systems.
MAINTENANCE
None required, but installation
performance and durability may depend on properly maintaining
products supplied by other manufacturers.
TECHNICAL SERVIES
Mer-Krete Systems maintains
technical field representatives available throughout the country.
Call
(800) 851-6303 for the nearest representative.
FILING SYSTEMS
Mer-Krete Architectural
Product Catalog and CD ROM
www.merkrete.com
| Mer-Krete
501 ClassicSet Test DATA ANSI A 118.1 |
TEST
|
EVALUATION |
ANSI
STANDARD |
Initial
Set @ 100° F |
1.1
hrs |
>
than 1 Hour |
Final
Set |
10
hrs |
>
than 9 Hour |
Open
Time @ 73° F |
>65
min. |
50
min. or more |
Open
Time @ 110° F |
20
min. |
20
min. or more |
Adjustability
@ 73° F |
>35
min. |
30
min. or more |
Adjustability
@ 110° F |
>15
min. |
10
min. or more |
Sag
|
1/64
inch |
<
1/16 inch |
| |
SHEAR
BOND |
ANSI
STANDARD |
Glazed
Wall Tile |
7
day, 273 psi |
>
200 psi |
Glazed
Wall Tilei |
12
wk, 342 psi |
> 250 ps |
Impervious
Mosaic |
7
day, 163 psi |
>
150 psi |
Impervious
Mosaic |
28
day, 172 psi |
> 150 psi |
Quarry
Tile |
7
day, 197 psi |
> 50 psi |
Quarry
Tile |
28
day, 228 psi |
> 100 psi |
Compressive
Strength |
3312
psi |
Not
< 2500 psi |
TECHNICAL ASSISTANCE:
Specification assistance is highly recommended prior to a proposed
installation.
Contact any Mer-Krete technical representative for recommendations
over existing substrates or problem areas.
|
