BD Loops Loop Shield - MS Polymer Detector Loop Sealant

BD Loop Shield - MS Polymer Detector Loop Sealant (BD-LS)

BD Loop Shield "BD-LS" Self-Leveling Hybrid Sealant is a one-part, moisture-curing sealant designed to protect inductance loop wire installed in saw-cut slots. It provides excellent adhesion to concrete, asphalt, paver stones, brick, and other clean substrates, typically without a primer. Its self-leveling formulation also fills horizontal joints and crevices and can be used for coating, potting, and encapsulating applications.

BD-LS will not shrink because it is 100% solids. Its low-odor, solvent-free formulation can be applied to damp substrates without bubbling when exposed to water during curing. BD-LS resists UV degradation, weathering, and yellowing while remaining flexible to accommodate joint movement.

BD-LS Features:

• 30 fl. oz. rigid plastic cartridge
• Flat sealant tip included with each tube for bottom-up application in one pass
• Compatible with standard quart-size caulking guns
• Available in Black or Gray
• Made in the USA
• Apply to damp concrete and wet substrates
• 100% solids; will not shrink
• One-year shelf life from the date of manufacture
• Resistant to UV degradation, weathering, and yellowing
• Excellent adhesion to concrete, asphalt, pavers, brick, and masonry
• Self-leveling formulation fills horizontal cracks and crevices
• Contains no solvents or isocyanates
• Excellent unprimed adhesion to various substrates
• Paintable within 24 hours of application
• Excellent joint movement capability
• Can be used for coating, potting, and encapsulating
• Low-odor formulation

Surface Preparation & Application

For best adhesion, clean the saw-cut groove and remove standing water before application. Clean, dry surfaces are recommended, although BD-LS can be applied to damp substrates. Alcohol may be used for cleaning if necessary. Priming is not required.

Carefully cut the cartridge tip just above the nozzle threads, attach the included sealant tip, and load the cartridge into a quart-size caulking gun. Apply sealant from the bottom of the groove upward. Slightly underfill the groove, leaving the sealant approximately 1/8" below the surface to prevent vehicles from tracking it. Pneumatic and battery-powered dispensing guns may also be used; do not use their high-speed setting.

Curing & Traffic

BD-LS develops a surface skin in approximately 45 minutes at 70°F (21°C) and 50% relative humidity. Strength begins developing immediately and continues increasing for seven days. Low temperatures and low humidity slow skin formation and curing.

Vehicle traffic is permitted immediately after application when the groove is slightly underfilled to keep tires out of the sealant. Surface skin formation does not indicate a complete cure.

Cold-Weather Application: Do not apply BD-LS below 32°F (0°C). Although the cured sealant withstands freezing temperatures, BD Loops recommends BD-LG2 for cold-weather installations.

Storage & Cleanup

Store in a cool, dry, well-ventilated location. Shelf life is one year from the date of manufacture, which is printed near the top of each tube and on the case.

Clean uncured sealant with rubbing alcohol. Cured material must be removed by scraping or abrasion.

Conforms, Meets & Exceeds:

• ASTM C920, Type S, Grade P, Use T2, M & O
• TT-S-00230-C Type I, Class B
• Conforms to California Proposition 65
• VOC Compliant (16 grams/liter ASTM D2369)

BD-LS - Cut Sheet (PDF)
BD-LS - Data Sheet (PDF)
BD-LS - Safety Data Sheet (PDF)