A two-component exterior grade epoxy adhesive, Thick paste. Thickening powders available to make this product knifegrade (Family Includes A-101-T, A-111-T, A-121-T, A-131-T).

Basic Uses

Patching and mending stone
Laminating stone to other construction materials
Bonding stone to stone
Anchoring bolts in stone and concrete

Limitations
Use on stone free of oil, grease, wax, coatings and other contaminates. Some yellowing and chalking will occur when exposed to ultra-violet light.

Color
Cream, rust, buff (tan), gray. Custom colors available.

Applicable Standards
Indiana Limestone Institute specification for units preassembled with thermosetting resins.

Technical Data

Cured Properties

Mix ratio	2 parts Match Part A-101-T, to 1 part Match B-431 by weight
Mixed viscosity	Creamy Paste
Pot life @ 75°F	20 minutes

Mixed Properties

Initial Set Time @ 75°F	2 hours
Full cure time @ 75°F	within 24 hours

Property	Values	Test Methods
Tensile Strength:	3800 psi	ASTM D-638
Tensile Modulus:	48050 psi	ASTM D-638
Tensile Elongation:	0.083	ASTM D-638
Compressive Strength:	26000 psi	ASTM D-695
Compressive Modulus:	164000 psi	ASTM D-695
Flexural Strength:	8300 psi	ASTM D-790
Flexural Modulus:	420000 psi	ASTM D-790
Shore D Hardness	90	ASTM D-1706
Heat Distortion Temperature	130°F	ASTM D-648
Water Absorption (24 hours):	0.0006	ASTM D-570

Installation

General Instructions
(See separate doweling, laminating, and patching instructions for more specific instructions. CSI format specifications are available.)

Surface Preparation and Use
Use gloves, wear eye protection, and avoid skin contact. When grinding cured joints, wear a dust mask. Substrate to be bonded must be completely dry and dust-free. Mix only the amount of epoxy which can be used in 10 minutes. Avoid stressing joint before complete cure of epoxy. Mask areas which must be kept free of epoxy. Clean uncured epoxy from tools with toluol (toluene) or xylol (xylene). (Use caution, these solvents are flammable. Ensure local ventilation.) Remove cured epoxy mechanically.

Mixing Instructions
All materials should be at or above 50°F. Combine the two ingredients at the following weight ratio: two parts A-101-T to one part B-431. Mix thoroughly - ingredients must be blended homogeneously for proper cure. Best to mix using double mix method, see reverse side.

Temperature Dependency
Temperature will affect the working properties of the material. Approximately every 10°F results in doubling the speed of cure. Therefore, at 85°F set time is cut in half, at 65°F the set time is doubled. Do not use on a substrate with a temperature below 45°F.

Coverage
Approximately 30 square feet per gallon when applied at 50 mils (1/16th of an inch). 231 cubic inches per gallon.

Availability

Packaging and Storage
Bonstone® A-101-T and B-431 are available in quarts, gallons, and 5 gallon pails. Shelf life is approximately one year if kept in unopened cans in a dry area at 75°F.

**If BONSTONE™ A-101-T is exposed to below room temperature conditions for extended periods of time, it may crystallize, giving it a stiff, grainy consistency. The product must be reconstituted before use by heating it to 150°F. Stir until it becomes a homogeneous liquid.

Warranty

This product’s warranty is limited to replacement of defective material and freight charges to destination only. Bonstone Materials Corp. is not responsible for consequential damages.

Maintenance

Designed for application in areas inaccessible to maintenance procedures.

Technical Service

Specification Service

Specifications on file
Development of proposed specifications for special projects.

Lab Service

Spectrophotometric color matching is available.
Sample patches can be made on stone forwarded to lab.

This information is furnished without warranty, representation, inducement, or license of any kind, except that is is accurate to the best of Bonstone Material Corporation's (BMC) knowledge or obtained from sources believed by BMC to be accurate, and BMC does not assume any legal responsibility for use of reliance upon same. User must determine if the product, process, or information described is suitable to the intended application. Before using any chemical, read its label and Material Safety Data Sheet.

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