Quality Assurance Checklist for Joint Sealants

Installer shall be experienced and be specialized in installing joint sealants similar in material, design, and extent to those indicated for proposed project, and whose work has resulted in joint-sealant installations with a record of successful in-service performance.
Each type of joint sealant shall be obtained from a single manufacturer.
The following preconstruction compatibility and adhesion testing shall be performed on joint sealants, and the results shall be submitted to Company:

a. Manufacturer’s standard test methods shall be used to determine whether priming and other specific joint preparation techniques are required to obtain rapid, optimum adhesion of joint sealant to joint substrates. Allowable temperature ranges for joint sealant installation shall be indicated.

b. Tests shall be performed under environmental conditions duplicating those that will exist during installation.
c. Elastomeric joint sealants shall be tested in accordance with ASTM C 920, and to other standard test methods specified on drawings or contract.

Preconstruction field-adhesion testing of elastomeric sealants shall be performed with respect to joint substrates as follows:

a. Test joints shall be located where indicated or, if not indicated, as directed by Company.

b. Field tests shall be conducted for each elastomeric and nonelastomeric sealant and joint substrate.
c. SABIC shall be notified 3 days in advance of dates and times when test joints will be erected.

Delivery, Storage, and Handling of Joint Sealants

- Materials shall be delivered to project site in original unopened containers or bundles, with labels indicating manufacturer, product name and designation, color, expiration date, pot life, curing time, and mixing instructions for multicomponent materials.
- Materials shall be stored and handled in compliance with manufacturer’s written instructions to prevent their deterioration or damage due to moisture, high or low temperatures, contaminants, or other causes.

Conditions for Installation of joint sealants

- Installation of joint sealants shall not be started under the following conditions:

a. When ambient and substrate temperature conditions are outside limits permitted by joint sealant manufacturer.
b. When joint substrates are wet.

- Installation of joint sealants shall not be started where joint widths are less than those allowed by joint sealant manufacturer for applications indicated.
- Installation of joint sealants shall not be started until contaminants capable of interfering with adhesion are removed from joint substrates.

Warranty

- Special warranties in this sub-section shall be in addition to, and run concurrent with, other warranties made by contractor under requirements of the contract documents.
- Installer shall submit a written warranty for two years from project completion, agreeing to repair or replace elastomeric joint sealants that do not comply with performance and other requirements.
- Manufacturer shall submit a written warranty for ten years from project completion, agreeing to furnish elastomeric joint sealants to repair or replace those that do not comply with performance and other requirements.
- Special warranties shall exclude deterioration or failure of elastomeric joint sealants from the following: