The J & JP Series Sealing Systems include an extruded elastomeric profile and a high-strength, two-part epoxy based structural adhesive. The product, when inserted into an expansion joint in a substrate, will seal the opening from the intrusion of
Installation of the epoxy adhesive during cold and hot weather includes a cure time listed as 24 hours at 70⁰F and storage of components is between 40⁰F and 90⁰F. The recommended temperature range for application of the adhesive is the same as the storage range. The adhesive (components) are temperature sensitive. At the lower end of the range, mixing may take longer and the cure period will be longer. At the higher end of the range, the initial set of the adhesive will occur more quickly, so less time for the installers to apply and position the seal. If the contractor is inexperienced, I suggest requiring a technical representative to go over pre-installation preparations and be onsite for the first joint location to be installed.
- Product Installation Details - Premix DSB High Strength Epoxy Parts A and B individually if not using entire container.
- Proportion equal parts by volume of Part A and Part B into a clean mixing container.
- When measuring, Do not use one tapered container such as a Dixie paper cup, filling it half full of A and half full of B; the correct ratio (1:1) cannot be achieved due to tapered feature of container.
- Thoroughly mix using low speed drill (400 to 600 RPM) and paddle mixer for 3 minutes, scraping sides of container until a uniform gray color is achieved.
- Only mix amount of epoxy that can be used within its gel time. Spread mixed epoxy out thin on a hawk to extend gel time. If you pile it up, the gel time will be shortened due to the greater mass and exotherm.
J & JP-Series Sealing Systems Ease of Installation – J & JP Seals have specially
designed internal webbing to facilitate installation and do not require the use of a vacuum to collapse or inflate the seal for purpose of installation.- Concrete and Steel Adhesive is VOC Compliant – The adhesive has a zero VOC rating. The material resists humidity, salt spray and extreme temperature ranges.
- Fatigue Tested for One Million Cycles – The profiles were cyclically opened and closed in tension and compression for one million cycles. The seals were stretched to 200% of their original width with no bond failure.
No Blockout Recess Required – The J & JP-Series are a solid choice with the precast concrete industry in that no blockout recess is required. The seal profile can be installed directly between the joint interfaces.
- Safety Date Sheets for S. Brown High Strength Epoxy – Part A, D.S. Brown High Strength Epoxy – Part B, and J&JP Seal Conditioner.
- J & JP Series Sealing Systems, one of D.S. Brown’s key proprietary product lines, were provided for an ambitious project to widen the New Jersey Turnpike, one of the most frequently traveled highways in the United States.