Product Highlights

• Low VOC content
• Chemical and abrasion resistance
• No lifting of conventional coatings
• Superior adhesion and excellent resistance to chalking
• Delivers a high-build paint film for excellent durability and long lasting protection

Application Procedures

Stir thoroughly before and during use. Apply 1 or 2 coats. May be applied by airless spray, brush, or roller. Brush only small areas at a time; when brushing or rolling, finish off in one direction. Avoid entrapping excessive quantities of air when stirring or dispersing.

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Product Highlights

• Reduces the porosity of masonry surfaces
• Orivudes excellent surface adhesion
• Tintable
• High alkali resistant-up to pH 13

Application Procedures

Do not apply when air and surface temperature are below 50 degrees.
Brush: Stir thoroughly and apply generously as received in the container with a good quality synthetic brush. Work into crevices to ensure adequate penetration and sealing.
Roller: Stir thoroughly and apply generously as received in the container with a good quality long-nap roller. Work into crevices to ensure adequate penetration and sealing.
Spray, Conventional: Thin as needed with small amounts of clean water. Spray, Airless: Fluid Pressure-1,500 to 3,000 PSI; Tip-.017-.019 Orifice; Filter-50 Mesh.

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Product Highlights

• Specially Formulated for Masonry Surfaces
• 97% Vapor Permeable
• Color fast
• Retards Corrosion
• Retards biological growth
• Fire Retardant

Application Procedures

Surface Preparation
Silin® AZ Coatings should only be used by experienced painters. Silin® AZ Coatings can be applied to any sound masonry or plaster surface. (Do not use on wood, plastic, PVC; or apply over latex, oil paint, varnish, or shellac coatings.) The surface must be clean and solid-free of all dust, dirt, grease, laitance, and any other coatings or foreign substances which may prevent bonding. Old lime paints, as well as loose emulsions and latex paints, should be scraped away and all dust removed by brushing and washing. The surface must be completely dry at the time of application. Cracks and spalls must be repaired and cured before painting. To ensure even penetration of the paint, make sure repairs have been made with repair materials that are compatible to the substrate. Temperature (ambient and substrate) must be at least 45° F (8° C). Protect adjoining surfaces from splashes. Silin® AZ Coatings can only be removed while wet.

When painting with dark colors, irregularly absorbing surfaces should first be treated with Cathedral Stone Stripper S-309 (see Cathedral Stone Stripper Section for more information). The difference in substrate absorption can cause small color variations, which are more noticeable on darker colors. The S-309 will etch masonry to create similarly absorbing surfaces.

The substrate must be porous to accept the coating. Freshly poured or finished concrete usually needs to be etched prior to coating so the coating can absorb into the masonry for proper bonding. Contact a Cathedral Stone technician for further questions on proper substrate preparation prior to coating.

Mixing
Do not thin Silin® AZ Coating (paint) with water - chalking can result. (Silin® AZ-Fixative can be thinned with water; see description of Priming Coat in subsection below on Highly Absorptive Surfaces.) Before painting, Silin AZ Coatings and Silin® AZ-Fixative must be mixed according to the type of substrate absorption (see substrate absorption definition below).

Substrate absorption definition: The absorption must not be too high or too low for the coating to be applied correctly. Absorption can be tested by applying small amounts of water (drops) on the vertical surface to be coated. Normal absorption can be defined as the water absorbing into the substrate without beading on the surface and leaving the surface damp. High absorption can be defined as water being absorbed so quickly that all traces of water seem to disappear rapidly. Low or no absorption can be defined as water laying or beading on the surface of the substrate (masonry must be etched in cases of low absorption).

Types of Surfaces:
Normally absorptive surfaces.

Undercoat: Undercoat: Add 15% to 20% Fixative to Silin® AZ Coating. Allow drying time of 12 hours (minimum) before applying finish coat.

Finish coat: Add 10% Fixative to Silin® AZ Coating.

Highly absorptive, sandy, surfaces
A priming coat may be necessary (Contact a Cathedral Stone representative for more clarification and see the italicized paragraph below).

Priming is only necessary when the coating is absorbed too quickly into the substrate. This results in excessive chalking of the coating. If a priming coat is applied when it is not necessary, the coating will not fully absorb into the substrate, causing drying and cracking of the coating on the surface of the substrate. To determine whether to prime and the proper priming dilution, perform test panels in an inconspicuous area of the substrate to be coated. Start by testing dilutions of Silin Fixative 1:1, 1:2, and 1:3 on three separate panels. Apply test applications of the Silin paint intermediate coat and look for signs of adequate absorption to determine the priming dilution.

Priming Coat: Prime with Silin® AZ-Fixative diluted with water.

Ratio of Fixative to water: 1:1 to a maximum of 1:3. Apply liberally with a brush. Allow drying time of 12 hours (minimum) before applying subsequent coats.

Intermediate coat: Add 20% Fixative to Silin® AZ Coating.

Finish coat: Add 10% Fixative to Silin® AZ Coating.

Application
Protect all areas not to be coated prior to application. Substrate must be completely dry before coating. Do not work when precipitation is expected within 48 hours of installation. The coating needs adequate time to bond to the substrate. Moisture disrupts the curing process. Apply liberally and spread well, filling all pores and cracks. Work wet into wet. Silin® AZ Coating should be applied with a short bristle brush. Brushing increases the absorption of the coating into the masonry, resulting in a longer lasting, more durable coating. Allow a 12-hour drying period between coats (unless otherwise indicated).

Clean Up
Place tools immediately in clean water when pausing work (15-30 minutes or more). Clean tools with clean water immediately after finishing work. Dried Silin® AZ Coating is insoluble in water. Silin® AZ Coating can be removed from non-porous surfaces with clean water while still wet.

Packaging
Standard Kit: Consists of 20 kg of Silin® AZ Coating in a 5 gallon plastic pail and a 10 liter jug of Silin® AZ-Fixative.
Silin Paint: 20 kg pail = about 4 gallons
Fixative: 5 liters = 1.5 gallons

When combined the yield is about 5 gallons depending on mix formulation.

Coverage
Coverage depends on the absorption and structure of the substrate. Normally, absorptive and/or smooth surfaces require two coats. Determine coverage with a trial application.

Normally absorptive, smooth surfaces with two coats:
1 unit of Silin AZ Coating (approx. 5 gallons) will cover about 540 square feet. 1 unit of Silin paint is 20 kg of paint and 2-5 liters of Silin Fixative.

Safety Information
Eye protection should be worn during mixing to protect eyes from splashing. Avoid contact with skin and mucous membranes. Work in well ventilated areas.

Storage and Shelf Life
Store in a dry area, away from direct sunlight. Storage conditions should be in the range of 40° - 80° F with low to average humidity. Average shelf life is six months in original, unopened packaging.

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Product Highlights

• Specially Formulated for Masonry Surfaces
• 97% Vapor Permeable
• Color fast
• Fire Retardant

Application Procedures

Surface Preparation
All mineral surfaces are suitable if they have cured and are clean, solid, dry and absorbent. Wood, plastics or oil paints and enamel coatings are not suitable as a substrate. For substrates containing gypsum, contact us for special assistance. Repairs of the plaster have to be executed with an adequate mortar. The surface of the repaired areas should match the texture and color of the existing surface. Hairline cracks must be repaired prior to application. Silin Lasur must be applied to clean masonry surfaces. Any previous coating must be removed prior to application. Temperature (ambient and substrate) must be at least 45° F (8° C). Do not work in the direct sun. Always maintain a wet edge when applying Lasur. Do not apply under wet conditions.

Mixing
The ratio of the mixture between Silin® Lasur and Silin® AZ-Fixative depends on the desired effect of the stain. The more Silin® AZ-Fixative used, the more transparent the stain. Different substrates with varying degrees of porosities will also have a greater or lesser effect on the color. To avoid a glass effect dilute Silin® AZ-Fixative with water. Colors should be tested and adjusted on site.

Clean Up
Place tools in clean water when stopping work. Clean tools with clean water immediately after finishing work. Dried Silin® Lasur is insoluble in water.

Coverage
The coverage depends on the proportion in the mixture and the absorptive capacity of the substrate. The exact quantities needed have to be determined on a trial area.

Safety Information
Eye protection should be worn during mixing to protect eyes. Avoid contact with skin and mucous membranes. Work in well ventilated area.

Forumlation Chart
Degree of Transparency	Parts Silin Stain	Parts Silin AZ-Fixative	Dilution of Silin AZ-Fixative
Low	1	3-5	Undiluted
Medium	1	6-25	Diluted 1:1 with water
High	1	26-100	Diluted 1:2 with water

Storage and Shelf Life
Store in a cool place. Use stain within twelve months time. Stir well before using.

Warning
Not for internal consumption. Keep out of the reach of children and animals.

Packaging and Coverage
Silin Lasur is available in a kit. Individual components can be purchased separately. Colors in the Silin Lasur kit were chosen to achieve a large variety of natural earth tones. Additional colors are available (see color chart). Coverage will vary greatly depending on degree of transparency (See formulation chart) and the porosity of the substrate.

Silin Lasur Kit
Item	Quantitiy
Silin AZ Fixative	10 liters (approx. 2.6 gallons)
White	1 pint
A52–Ochre	1 pint
A53–Terra Cotta Red	1 pint
A54–Red	1 pint
A56–Green	1 pint
A57–Umber	1 pint
A58–Black	1 pint
A59–Brown	1 pint
Color Fan	1 unit
Toolbox	1 unit

Color Chart
Color Number	Color Name
A51	Bright Yellow
A52	Ochre
A53	Terra Cotta Red
A54	Red
A55	Marine Blue
A56	Green
A57	Umber
A58	Black
A59	Brown
A60	Cobalt Blue
A61	Lasur Blue
A62	Light Green
A63	Goldenrod
A64	Clay
A65	Gray
WeiB	White

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Product Highlights

• Specially Formulated for Masonry Surfaces
• 92% Vapor Permeable
• Color fast
• Retards Corrosion
• Water Repellent

Application Procedures

Protect all areas not to be coated prior to application. Substrate must be completely dry before coating. Do not work when precipitation is expected within 48 hours of installation. The coating needs adequate time to bond to the substrate and moisture disrupts this curing process. Apply liberally and spread well, filling all pores and cracks. Work wet into wet. Silin® Silith Coating should be applied with a short bristle brush. Brushing increases the absorption of the coating into the masonry, resulting in a longer lasting, more durable coating. Spraying and rolling the paint is possible. Allow a 12-hour drying period between coats (unless otherwise indicated).

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Product Highlights

• Blends new mortar joints with old
• Contains no sythetic polymers
• Bonds with mortar only
• Deep penetration

Application Procedures

Testing
It is essential that tests of one or more colors and dilutions be carried out and evaluated prior to full-scale use. Due to great variation in masonry surfaces and job conditions, tests should be carried out to determine the suitability of these products and procedures for each particular situation encountered in the field.  The color will change in both hue and lightness within 2 to 3 days in sunlight (a longer period of time in shady areas). If the resulting color is too dark, repeat test(s) with dilution(s) prepared as described below. If application of either the concentrate (as packaged) or the dilution results in a tone that is too pale, apply a second coat; evaluate the appearance after at least 24 hours. Repeat test applications as may be necessary to create darker colors. Do not mix the individual formulations.

Note: Color descriptions used in labeling and product literature are based upon the modification of white mortars to colors of yellow ochre and brown using the two standard formulations. Treatment of surfaces other than white will result in a final color that combines aspects of both the mortar color and applied colorants. Most mortars change color upon normal weathering as the aggregate becomes more exposed.  Epochrome S has been formulated to so as not to alter the appearance of the masonry adjacent to mortars being toned. However, as there may be a very slight reaction with some types of unit masonry, such as fine-grained limestones. Test small areas of all contiguous materials.

Dilutions
Used directly from the container, Epochrome S is only for the creation of darker tones, as may be required for the modification of restoration mortars simulating brownstones, brick and darker terra cottas. In many instances, multiple coats may be required. Lighter colored materials (most pointing and restoration mortars simulating limestones and marbles) can be treated with the dilutions of 1:1 or 1:2 with water. At times, it may be appropriate to test a dilution of 1:3 or more, which will give extremely subtle, pale tones.  Prepare of dilutions using clean, potable water. Once prepared, dilutions must be used within 24 hours; during this time, they should be stored in clean, tightly sealed plastic containers. Dilutions must never be returned to the original containers.

Surface Preparation
Allow mortar to cure for a week. All finishing procedures, including acid washing, must be completed prior to application. Surfaces must be free from oils, evaporation retardant, set retarders, or related products.

On older walls, the presence of sealers and water repellents may reduce the ability of Epochrome S to impart color; admixtures may also affect the appearance of both old and new surfaces treated with the toner. Mortars must be free from soil, construction debris and biological growth, and must be visibly dry at the time of application, as any significant moisture will dilute the product and/or lessen it's absorption.

Application
Transfer Epochrome S (or dilution) to a sealable plastic pail; do not use metal containers. Apply each coat with a long-fibered paint brush, either synthetic or natural fiber. Keep container closed between successive applications to prevent evaporation. Rinse brushes with water after each application. Do not return excess liquid (even if utilized as the concentrate) to the original container at the end of the work day.  24 hours after application of the final coat, rinse all toned surfaces with clean, potable water. This should not result in any noticeable loss of applied color.  If applying Epochrome S in direct sunlight, or when air temperatures are above 95° F; rapid evaporation may cause some variations in color. Do not apply when air temperature is less than 40° F, or when it is expected to drop below 40° F within the next 48 hours.

Protect treated surfaces (including test areas) from rainfall during application at all times prior to the rinse. Rinse brushes after each application.

Limitations
Once Epochrome S has dried, the color cannot be changed.

Epochrome S is used to change or darken the color of a repair, but cannot be used to lighten.

Packaging and Coverage
Epochrome S is available in 250 ml, 1 liter and 2 liter containers.

For mortar joints: Used as a 1:1 dilution, a 2 liter (0.53 gallon) container of Epochrome S provides enough toner to treat approximately 3,000 to 4,000 linear feet of mortar joint (3/8" width) with a single coat. (This is equivalent to approximately 490 to 655 square feet of surface on a typical brick wall.)

For areas of composite repair: 2 liters of toner, used without dilution, should cover approximately 60 to 65 square feet with a single coat.

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