Euclid Eucolastic 1NS 10oz Cartridge White

Euclid Eucolastic 1NS is a polyurethane sealant designed for sealing joints in concrete and masonry structures, offering exceptional adhesion, flexibility, and weather resistance. Extremely durable in dynamic joints, offering persistent adhesion once fully cured.

Provides a secure seal to prevent water infiltration.
Accommodates joint movement for enhanced flexibility.
Withstands outdoor exposure and UV radiation for long-lasting performance.

$5.78

Availability: In stock ( 55 Available )

SKU

18216

Euclid Eucolastic 1NS White – 10 oz Polyurethane Hybrid Sealant

Euclid Eucolastic 1NS is a single-component, non-sag, moisture-cured polyurethane hybrid sealant engineered for dynamic joint sealing in vertical and overhead applications. Formulated with a silane-terminated polymer, this advanced sealant offers superior performance over standard polyurethanes, with outstanding flexibility and adhesion. Eucolastic 1NS delivers ±35% movement capability and remains bonded through thermal cycles. It skins quickly, becomes tack-free within hours, and can be painted once cured. Ideal for concrete, precast panels, EIFS, window perimeters, and other critical joints, it can be used both above and below grade, indoors or outdoors.

Key Features:

Single-component, non-sag polyurethane hybrid sealant
±35% movement capability for dynamic joints
Skins in about 1 hour and becomes tack-free in 3 to 4 hours
Moisture-cured – no special curing required
Can be applied above or below grade, interior or exterior
Paintable after full cure
Excellent adhesion without primer on most substrates
Available in multiple colors including white

Applications:

Concrete control and expansion joints
Precast concrete and masonry panels
EIFS systems
Window and door perimeters
Vertical and overhead joints
Above and below grade sealing

Technical Specifications:

Property	Value
Movement Capability (ASTM C719)	±35%
Shore A Hardness (ASTM C661)	25
Tack-Free Time (ASTM C679)	5 to 6 hours
Skin Time	1 hour
Adhesion to Concrete (ASTM C794)	18–22 pli – No adhesion loss
Temperature Range (Service)	-40°F to 185°F (-40°C to 85°C)
Shelf Life	18 months (unopened)
Coverage (10.1 oz cartridge)	24 linear feet at 1/4" x 1/4"
Compliances	ASTM C920 Class 35, TT-S-00230C, CAN/CGSB 19.13-M87

Frequently Asked Questions:

Can Eucolastic 1NS be applied to damp surfaces?
No, the substrate must be clean and dry at the time of application to ensure optimal adhesion and cure performance.

Is primer required for bonding?
Typically, no primer is required on porous surfaces. However, priming may be necessary on smooth or non-porous substrates, especially when exposed to water service.

Can Eucolastic 1NS be painted?
Yes, it can be painted once fully cured using compatible coatings.

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