Silin Paints
Guideline Specifications

Division # - Paints and Coatings

Part 1 - GENERAL

1.1 SUMMARY OF WORK
A. For coating masonry, stucco and plaster surfaces

1.2 SUBMITTAL
A. Submit the following items in time to prevent delay of the work and to allow adequate time for review and resubmittals, if needed; do not order materials or start work before receiving the written approval:

1. Mineral Coating shall be: Silin Coatings available through:
Cathedral Stone Products, Inc.
7266 Park Circle Drive
Hanover, MD 21076
Samples shall be submitted for color matching to the same address.

2. Samples of all specified materials and Material Safety Data Sheets (MSDS) as appropriate.

3. Apply coating samples on masonry-preferably on the building. Do not apply samples to plywood or other non-masonry surfaces.

4. Written verification from the Contractor that all specified items will be used. Provide purchase orders, shipping tickets, receipts, etc. to prove that the specified materials were ordered and received.

1.3 QUALITY ASSURANCE/TEST REQUIREMENTS
A. Installer Qualifications: Company specializing in commercial painting and finishing with three years documented experience and approved by the coating manufacturer.

B. Coating Samples: Prepare a sample of each type of repair listed below. Prepare, install, and finish each sample according to the specifications. All samples must be applied to masonry. Prepare samples in an area where they will be exposed to the same conditions as will be present on the building during curing. Allow samples to cure at least three days (or longer, if possible) before obtaining owner's approval for color match. Samples should be viewed from a minimum distance of 12 feet.

1.4 DELIVERY, STORAGE, AND HANDLING
A. Materials are to be delivered, stored, and handled to protect them from damage, extreme temperature, and moisture in accordance with manufacturer's written instructions.

B. Deliver and store material in manufacturer's original, unopened containers with the production date shown on the container or packaging.

C. Comply with the manufacturer's written specifications and recommendations for mixing, application, and curing coatings.

1.5 PROTECTION/SITE CONDITIONS
A. Cold Weather Requirements: Do not work in temperatures below 45° F, when the substrate is colder than 45° F, or when the temperature is expected to fall below 45° F for 48 hours after installation of the coating. Building an enclosure and heating areas to maintain this temperature may only be done with the written approval of the Specifier.

B. Hot Weather Requirements: Protect coating from direct sunlight and wind. Do not use or prepare coating when ambient air temperature is above 90° F.

C. Foul weather requirements: 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.

Part 2 - PRODUCTS

2.1 COATING MANUFACTURER
A. Silin Mineral Coatings are distributed by Cathedral Stone® Products, Inc., 7266 Park Circle Drive, Hanover, MD 27016; tel. (410) 782-9150; fax. (410) 782-9155; www.cathedralstone.com. Silin Mineral Coatings are distributed in a two-component system. Mix component A (colored paint) with component B (Silin AZ Fixative) in the desired proportions before installation.

B. Substitutions: If proposed equal is submitted, lab test to establish equivalent performance levels. Use an independent testing laboratory, as determined by the Specifier, and paid for by the submitting party.

Part 3 - EXECUTION

3.1 WORKMANSHIP
A. Do not use any additives in the coating system.

3.2 PREPARATION FOR REPAIRS
A. Do not start work until surfaces to be coated are in proper condition to produce finished surfaces of uniform, satisfactory appearance.

B. Mildew, algae and fungus should be removed by methods recommended by the coating manufacturer.

C. Remove dust and loose particulate matter from surfaces to receive coatings immediately prior to coating application.

D. Protect all non-masonry surfaces such as: glass, wood, metal, etc.

E. Cracks and spalls must be repaired and cured prior to coating application.

F. To ensure even penetration of the coating, make sure any masonry repairs have been made with repair materials that are compatible to the substrate.

G. Remove any previous or existing coatings before application of new mineral coating.

H. Note**: 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.

3.3 MIXING COATING SYSTEM
A. It is recommended that proper eye protection be worn during mixing in case of accidental splashing. Mix component A (colored paint) with component B (Silin AZ Fixative) in the desired proportions (see chart below) before installation.

B. Mixing ratios will depend on the desired coating effect and the substrate surface.

1. Coating Transparency:

Coating Transparency
Opaque finish	(Silin AZ Coating*)	Transparent finish	(Silin Lasur*)
Parts of colored coating	Parts of Silin AZ Fixative	Parts of colored coating	Parts of Silin AZ Fixative
3-9	1	1	3-100+

*See manufacturers data sheets for more detail on opaque and transparent finishes.

2. Substrate surface** (This chart is intended as a guideline for application of Silin AZ Coating.):

Type of surface	Priming Coat	UnderCoat	Finish
Normally absorptive, solid and uncoated surfaces	N/A	Add 15% to 20% of Silin AZ fixative to Silin AZ Coating	Add 10% Silin AZ Fixative to Silin AZ Coating
Highly absorptive, sandy, surfaces	A priming coat may be necessary (Contact a Cathedral Stone representative for more clarification) Prime with Silin AZ Fixative diluted with water 1:1 to a maximum of 1:3	Add up to 20% Silin AZ fixative with Silin AZ Coating	Add 10% Silin AZ Fixative to Silin AZ Coating

**This chart is meant to serve as a guideline for Silin AZ Coating mixes. Masonry substrates vary greatly in physical properties therefore, proper testing should be done prior to any installation to ensure accuracy and viability of the Silin coating mixes. Call Cathedral Stone at 1-800-684-0901 with any technical questions regarding Silin AZ Coating mixes.

3.4 APPLICATION OF SILIN COATING
A. Apply each coat of Silin coating by brush, making sure to work the material into the pores of the masonry. The coating is designed to be absorbed into the masonry so it should not be applied in thick layers. Brush application increases the absorption of the coating into the masonry. This feature results in a longer lasting, more durable coating.

B. Allow manufacturer's specified drying time, and ensure correct coating adhesion, for each coat before applying the next coat.

C. Do not apply succeeding coat until Architect has approved previous coat; only Architect-approved coats will be considered in determining number of coats applied.

D. Where coating application abuts other materials or other coating color, terminate coating, making clean sharp termination line without coating overlap.

E. Where color changes occur between adjoining spaces, through framed openings that are of same color as adjoining surfaces, change color at outside stop corner nearest to face of closed door.

3.5 CLEAN UP
A. 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 Coatings are insoluble in water. Silin AZ Coatings can be removed from non-porous surfaces with clean water while still wet.