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Worcester Union Station

Union Station in Worcester, MA patched with Custom 45-Terra Cotta and coated with Elastowall 351


The following is a link list of products commonly used for terra cotta restoration. For a Technical Guide to Terra Cotta Restoration, click here.

Guide Specification: Section 4902 Terra Cotta Restoration

RL-Series Restoration Latexes RL-1, RL-2, RL-3, RL-4, RL-5, RL-6, RL-7
RL-Series latex-modifiers are unique, reactive acrylic additives designed to enhance the performance of Portland cement-based materials. When added to cement-based mortars, patches, plasters and coatings, RL-Series latex modifiers improve mechanical performance, workability, adhesion and resistance to freeze-thaw and harsh environmental exposures.

Custom SYSTEM 45 Custom-Matched Repair & Coating Compounds
Edison Custom SYSTEM 45 products are two-component, latex-modified, cementitious compounds used to produce highly durable and compatible aesthetic repairs to stucco, stone, masonry and concrete.

SPEC-JOINT 46 Custom Masonry Repointing Mortar
SPEC-JOINT 46 is a series of pre-colored, prepackaged, lime and cement-lime mortars for use in new construction and restoration. Lime mortar is formulated to match traditional historic mortars, and cement-lime mortars are formulated in accordance with ASTM C-270 specifications to provide consistent, reliable results in both performance and appearance. SPEC-JOINT 46 is simply mixed with water prior to use, and is applied in accordance with Standard Procedures for use of masonry mortar.

SYSTEM 49 CPBA Corrosion Resistant Primer and Bonding Agent for Embedded Reinforcing Steel
is a two-component, latex-cement primer and bonding agent designed to protect steel reinforcement from corrosion while promoting adhesion between patching compounds and concrete and steel substrates. It is an odorless, non-flammable, waterborne system which is essentially non-hazardous in storage and handling.

PUMP-X 53, 53i, 53iE, 53iL Pumpable Cementitious Grouts
is a multi-purpose, low modulus, moderate strength filler used for filling cavities, voids and cracks from a minimum of " width up to approximately 18 inches.
PUMP-X53i is an ultra-fine, moderate strength micro-injection grout which achieves high flow for efficient filling of small cracks and voids from a minimum width of approximately 1 mm to as much as several inches in thickness.
Pump-X 53iE is an ultra-fine, expanding,  non-polymer cementitious injection grout designed for filling small cracks and voids in sound concrete and masonry construction. Slight expansion after placement and before final set enables the material to force itself into close, positive contact with internal crack surfaces, where desired.
PUMP-X-53iL is a softer, non-polymer, hydraulic lime grout, for use in Historic masonry restorations requiring repairs to lower strength brick and softer stone elements.

THIN-FILL 55 Masonry & Concrete Thin-Section Reprofiling Mortar
is a latex-modified reprofiling mortar for application of thin-section patches of 1/32 to 1/4 inch depth while maintaining excellent adhesion, strength, breathability and resistance to cracking.THIN-FILL 55 provides smooth finishes which can also be further polished to repair glazed terra cotta or polished stone profiles.

Waterborne, reactive silane-siloxane water repellents reduce water absorption in porous substrates without affecting permeability or appearance.

SYSTEM 90-II, 90-W Catalytic Breathing Sealers & Stains
Edison SYSTEM 90-Series sealers are reactive treatments designed for maximum performance and exterior durability in protection of on-grade and above-grade stone, concrete and masonry. Surfaces treated with SYSTEM 90 products are sealed against a wide range of chemical and weather exposures, including acid rain, melting snow, freeze-thaw, de-icing salts, air pollutants, wind driven rain and a variety of other materials.Pigmented treatments combine all the performance of 90-Series sealers with the aesthetic benefits of a durable semi-transparent stain.

LiquiDirt 94 Sealer, Stain & Faux Finish
LiquiDirt 94 is a durable, high-permeability stain and faux finishing treatment designed for application to on-grade and above-grade stone, masonry, mortars, stucco and concrete. It is used for"aging" of new masonry replacements or repairs, to change color of new or existing masonry units, or to overcome fading or staining in original materials.

AQRYL-X 200 Low VOC, Self-Crosslinking, 100% Acrylic Emulsion Coating
AQRYL-X 200 is a high performance, very-low VOC coating designed to provide exceptional water-resistance, vapor permeability and maximum durability.  AQRYL-X 200 develops high bond strength to a wide variety of substrates under dry and damp conditions, and retains high performance even after extended moisture exposures.

AQUATHANE UA-210 Types E, F, NCL and H-A/G Waterborne Polyurethane Coatings
products are multi-purpose, high-performance, waterborne polyurethane- based coatings which can be applied to natural stone. They are breathing, low in odor, VOC-Compliant, fast drying, reactive, single component products. Cured films are tough, flexible, and resistant to abrasion and intermittent exposure to water and many chemicals.

AQUASPEX 220 Multi-Colored Special Effects Coatings
is a specialty coating system designed to provide multi-color finishes in a single, simple application. They are based on clear, high-performance, highly durable, water-borne polyurethane coatings into which color specks of varying sizes and colors have been dispersed. The coating can be used to simulate multi-colored granite and marble.

SIL-QUATHANE 222 Waterborne Silicone/Polyurethane Coating
SIL-QUATHANE 222 is a water-borne, high-performance silicone/aliphatic polyurethane hybrid elastomeric coating. It combines the extreme water resistance and reduction in water absorption rate of high-performance silicone elastomer with the abrasion, chemical, and weather resistances of aliphatic polyurethane.

PRIMER 240 for Aquathane UA210
Waterborne, vapor-permeable primer promotes adhesion to smooth, non-porous, glazed, previously coated and other hard-to-bond surfaces.

PRIMER 241 for tinted Aquathane UA210E and UA210EE
Primer 241
is a Reactive, UV-stable, water-resistant, self-crosslinking, vapor permeable 100% acrylic emulsion primer.

EVERKOTE 300 Mineral Coatings & Stains
EverKote 300
coatings are waterborne inorganic paints and stains based on potassium silicate binders. Potassium silicate masonry paints have been in use for over a century to provide extremely durable, breathable color coatings on all types of mineralbased substrates, including stone, masonry, concrete and cement plaster (stucco).Two standard grades of are available: Penetral Low Viscosity, SemiTransparent Stains and Patinar Medium Viscosity, Opaque Coatings

PRIMER #342 for waterborne coatings.
Primer 342
is a low viscosity, vapor permeable acrylic emulsion primer. It is used for penetrating and conditioning porous or friable surfaces prior to coating with Elastowall 351 breathable masonry coatings. It has also been used as a pre-treatment for aiding in the drying out of deeply saturated, thick section concrete and masonry structures.

ELASTO-WALL 351, ELASTO-TONE 353 Breathable Elastomeric Coatings,
ELASTO-MASTIC 352, ELASTO-FILL 354 Elastomeric Sealants and Fillers

ELASTO WALL 351 is a permanently flexible breathable masonry coating designed to waterproof and decorate vertical and sloped above-grade surfaces, including all types of natural stone, and including walls exhibiting small working cracks. It has higher vapor permeability than some mineral coating products, and can be applied over a wide variety of previous coatings and treatments.
ELASTO MASTIC 352 is a knife-grade, higher solids formulation designed for pretreatment of surface defects and cracks prior to general coating application. Depressions and defects are simply "spackled", and then a 350-Series coating is applied after drying.
ELASTO-TONE 353 is a highly permeable finish system for economical color coatings and "touch-up" applications. Based on the same chemistry as ELASTO WALL 351, it features high elongation and low temperature flexibility, while offering greater economy, due to lower build and higher application rate.
ELASTO-FILL 354 is a higher solids, lightweight version of ELASTO-MASTIC 352. It is used where higher builds of filler are desired, with lower shrinkage.

FLEXI-WELD 520, 520T Epoxy Adhesives
FLEXI-WELD 520 and 520-T
are two-component, moisture insensitive, high strength 100% solids epoxy adhesives for general purpose bonding to a wide variety of substrates, including stone, masonry and dry or damp concrete.

FLEXI-FILL 530 Epoxy Filler
is a unique two-component, slightly flexibilized 100% solids epoxy-acrylate-isocyanate terpolymer adhesive for surface-sealing cracks and filling small depressions in a wide variety of substrates. Suitable substrates include terra cotta, concrete, masonry and stone. FLEXI-FILL 530 is a paste adhesive, which should be used neat or mixed with coarse fillers and tooled onto bonding surfaces. Although it is packaged in premeasured "A" (Resin) and "B" (Hardener) components, the mix ratio is far less critical than for traditional 2-part epoxy formulations. This allows the user to adjust working consistency at different temperatures. This variable ratio feature makes FLEXI-FILL 530 a true "all season" epoxy adhesive and sealant.

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Edison Coatings, Inc. Products are manufactured in the USA from US and foreign components.
E-NHL 2, E-NHL 3.5 White and E-NHL 5.0 are Products of France.
E-NHL 3.5 Buff and Ruregold are Products of Italy. Marfil is a Product of Spain.

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Phone: (860) 747-2220 or (800) 341-6621

FAX: (860) 747-2280 or (866) 658-1189

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Last Updated:

Wednesday, June 5, 2024

Society for the Preservation of Historic Cements, Inc.


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