1-EPR-1_Tech_Data_page_3.pdf

C. EPR-1 PRIME® is a fast cure prime material. Typically this prime material cures in one to four hours.

Variances in the type and gradation of the base material and less than ideal weather can extend cure times to as long as eight hours.

Generally, the curing time will be shortened on hot, clear days and lengthened on cool, cloudy or overcast days. Base materials that are open graded and permeable, speed curing times while closed graded and water-resistant surfaces slowed the curing process. A simple test to determine if the resin had cured: Step on primed surface. If prime adheres to your boot sole and lifts off the base, the prime has not yet cured enough to open the surface to traffic. Test hourly until lifting (picking up) is not observed.

The primed surface will be damaged by picking up on tires if traffic is allowed on it before curing is complete.

D. Sanding and blotting is rarely required especially on open graded materials. When traffic must be placed on the primed surface prior to complete curing, it will be necessary to protect the primed surface from picking by installing a light sand coating using three to five lbs. of dirty sand per square yard.

This installation must be delayed until all of the water in the applied emulsion has completely evaporated. You can tell when this happens as the resin will become tacky and darken in color. No puddling should be apparent prior to applying the sand. In areas where high traffic count is anticipated, it may be necessary to install a protective cover material such as sand bituminous mixture

(armor coat) to protect the prime coat.

E. Sweeping of the surface prior to paving may be necessary to remove loose sand and other debris. Care must be exercised to avoid damage to the primed surface. In this situation, damage may be avoided by using only light down pressure on the sweeper. If using a power sweeper, the “float” mode of operation should be selected.

V. Appearance

Although EPR-1 PRIME® has a small amount of asphalt cement, the largest constituent is a virgin petroleum resin. This is the reason that the color of EPR-1 PRIME® is brown rather than black.

It is common for base materials treated with EPR-1 PRIME® to have a “blotchy” appearance. This is because some areas of the prepared base are more porous and/or granular which allows for more complete penetration.

Conversely, other areas are more dense and/or impervious which impedes penetration. The more porous areas will appear lighter or dull in color because most of the

EPR-1 PRIME® has been absorbed.

The less porous areas will shine and appear darker because more of the resins stayed on the surface.

VI. Cleaning

Should EPR-1 PRIME® get on curbs or other concrete structures, it should be removed immediately using soap and water under pressure. Once the emulsion breaks, the curing process has begun and it can be removed using conventional removal methods such as sand blasting or industrial solvents.

Should EPR-1 PRIME® get on painted or other non-porous surfaces, use lanolin hand cleaners, mineral spirits, or other industrial solvents or cleaners to remove the resin.

WARRANY

D & D Emulsions, Inc. warrants that at the time and place we make shipment, our material will be of good quality and will conform with our published specifications in force on the date of acceptance of the order. The foregoing warranty shall be exclusive and in lieu of any other warranty, expressed or implied, including warranties of merchantability and fitness for a particular purpose and all other warranties otherwise arising by operation of law, course of dealing, custom or trade or otherwise. As the exclusive remedy for breach of this Warranty, we will replace defective materials, provided, however, that the buyer examines the materials when received and promptly notify us in writing of any defect before the materials are used or incorporated into a structure. D & D Emulsions, Inc. shall in no event be liable for consequential damage. Unless otherwise agreed in writing, no warranty is made with respect to materials not manufactured by

D & D Emulsions, Inc. We cannot warrant or in any way guarantee any particular method of use or application or the performance of materials under any particular condition. Neither this Warranty nor our liability may be extended or amended by our salespersons, distributors or representatives or by any sales information or drawings.

TECHNICAL SERVICE

Complete technical and specification services are available from the manufacturer and their authorized representatives and distributors.