STONEWARE & PORCELAIN SPECIFICATIONS
General Description
McIntyre PORCELAIN AND STONEWARE TILES are formed from wet clay, hand finished and hand glazed and single fired to 2400 degrees
F. Each tile has a flat back and cushioned edge. Custom tiles may be produced at other temperatures and with other processes.
Standard Specifications
McIntyre Tile conforms to ANSI 137.1 as Special Purpose Tile. Our tiles are produced, graded and packed to our stated specifications. When
requested by the purchaser prior to production, a Master Grade Certificate may be issued certifying compliance with properties mutually
agreed upon by purchaser and McIntyre Tile. Generally, a Master Grade Certificate should be requested when the tile is specified for a
commercial floor or any exterior use.
How to Specify
Glazed, high fired ______________________ (specify Porcelain or Stoneware) tile in actual size ______________ (specify actual size) and
color _______________ (specify glaze name) as manufactured by McIntyre Tile Company, Healdsburg, California. Tile shall have a flat back,
a cushioned edge, and shall be fully vitrified (absorption less than 3%). Tile shall conform to ANSI 137.1 as Special Purpose Tile. Allow 4-6
weeks from time of purchase order to delivery. Sales Terms are 50% down with order, balance COD.
Availability
McIntyre maintains an inventory of some tiles and extruded shapes at the factory in Healdsburg, California, available for immediate shipment.
Most tile is made to order and therefore subject to production limitations and order volume fluctuations. For purposes of specification, a lead
time of 4-6 weeks is sufficient in most cases. Check with the factory or your local distributor for verification of delivery.
Color Variation
Most McIntyre glaze colors vary from tile to tile, some more than others. These variations are intentional, resulting from our particular
production methods and our choice of raw materials. When specifying a McIntyre glaze, always work from a sampling of 3 or more tiles which
represent the range of color you can expect on the job.
Slip Resistance
If specified when ordered, McIntyre will add an abrasive grit to any glazed tile for use on floors. The grit is either white (pure silica) or black
(nickel alloy). The abrasives are most commonly used on shower floors and commercial floor applications.
Frost Proof
McIntyre Tile has a water absorption of less than 3% (vitreous) and is suitable for use in pools and spas for both interior and exterior
applications.
Crazing
Crazing refers to the hair-line cracks which occur in the glaze surface of some tiles. Certain glazes produced by McIntyre Tile are intentionally
crazed for decorative effect. To minimize the possibility for staining, the factory recommends the use of natural gray grout. Penetrating sealers
or grout releases may also be used per the manufacturer's instructions. To highlight the crazing, colored stains may be rubbed into the surface
before sealing.
Size Variation
Because of the substantial shrinkage from wet to fired in the manufacturing, McIntyre tiles are subject to size variation. Dimensions on 6 x 6
and smaller tiles may vary up to 1/16" from the actual size specified, on 8 x 8 tile to 3/32" and on 12 x 12 tile to 1/8". Tile thickness may vary
1/32" from the dimensions specified. Deflection on 12 x 12 tiles is limited to 1/8" from a straight edge.
Custom Color Development
We specialize in custom color development. Generally, we can match the hue and sheen of a sample submitted. For a fixed development fee,
we will conduct a series of glaze tests and make a prototype tile for submittal. Custom glazed tiles made for a job ar surcharged 20%. Please
allow 2-4 weeks for development time in our glaze lab.
