ENVELO-SEAL™ 2.0 IB W

Features & Benefits

FEATURES

• Contains rapidly renewable resource components.
• Bio-based contents 20% (“B” side).
• Utilizes recycled plastic materials.
• No dangerous heavy metal catalysts (such as lead or mercury).
• No ozone depleting products (ODP).
• No bromine or other halogenated components.
• No formaldehyde components.
• Mildew, bacteria, and fungus resistant.
• Considered safe for burial and landfill disposal.
• Compliant with USDA/FDA requirements for incidental food contact.

Applications & Uses

RECOMMENDED USES

• Residential insulation
• Industrial insulation
• Vented attics
• Floors
• Crawl spaces
• Fluid tanks
• Commercial insulation
• Exterior walls
• Unvented attics
• Foundations
• HVAC ducts
• Cold storage units in conjunction with vapor barrier

PRODUCT APPLICATION

ENVELO-SEAL™ 2.0 IB W should be applied in 2” to 3” lifts with maximum pass thickness of 3” lifts; with suggested cure time between lifts. Note: Re-spraying too soon may result in charring and possible spontaneous ignition of foam. ENVELO-SEAL™ 2.0 IB W should only be applied to approved substrates recommended by the manufacturer. The data presented here should only be used as a guide since the actual foam properties are influenced by the efficiency of the spray gun, component temperatures, foam thickness, and ambient conditions. While the above technical information is based on results of actual tests, it should only be used as a guideline for typical chemical and physical properties. The user musttest and qualify the product. Final determination of suitability is the responsibility of the user. When removing bungs from containers use caution, contents may be under pressure. Loosen the small bung first and let any built up gas escape before completely removing. The resin “B” component will froth at elevated temperatures.

CLIMATE CONDITIONS & HUMIDITY

Moisture in the form of rain, dew, frost can seriously affect the quality and adhesion of the ENVELO-SEAL™ 2.0 IB W to the substrate itself. SPI does not recommend the spraying of this system when the relative humidity (RH) exceeds 85% or within 5°F of the dew point. When heating the interior of a building the relative humidity can change dramatically and should be constantly monitored.

SPRAYING

Thin “flash passes” to very cold surfaces are recommended. Thin passes (1/2”) can be done when the substrate moisture or adhesion is less than desired. It is recommended that thetotal design thickness be completed each day. Application temperatures below 32°F may require reduction in single pass application thickness if flash passes are used. Yield and in-place-density is dependent upon the temperature of the substrate, ambient air temperature, gun speed application, gun tip size, and the output of the proportioning unit. Excessive pass thickness above 3” can reduce physical properties and cause local over heating and possible fire.In freezing conditions (below 32°F), job site air temperature must be maintained above 32°F, especially during the initial cure cycle to minimize any extreme temperature drops to thenewly curing foam product. Multiple layers can be appliedto reach the desired thickness and R-value. As with all spray polyurethane foam systems, improper application techniques should be avoided. Examples of improper techniques include, but are not limited to, excessive thickness of spray polyurethane foam, off ratio material and spraying into orunder rising foam. Potential results of improperly installedspray polyurethane foam include: dangerously high reaction temperatures that may result in fire and offensive odorsthat may or may not dissipate. Improperly installed foammust be removed and replaced with properly installed spray polyurethane foam. It is the responsibility of the applicator to thoroughly understand all equipment technical information and safe operating procedures that pertain toa spray polyurethane foam application. When changing the“B” side (resin) to another type of spray polyurethane foamit is very important that the supply hoses and pumps are completely drained. Mixing of dissimilar product types willhave an adverse effect on the foam. Spray polyurethane foam insulation is combustible. High intensity heat sources such as welding or cutting torches must not be used in closeproximity to any polyurethane foam. Large masses of spraypolyurethane foam should be removed to an outside safearea, cut into smaller pieces, and allowed to cool before discarding into a trash receptacle. ENVELO-SEAL™ 2.0 IB W is NOT designed for use as an exterior roofing product. Cold chemical scan cause poor mixing, pump cavitation, or other process problems due to higher viscosity at lower temperatures. Storage temperatures should be 50°F to 90°F for several days before use, and should not exceed 90°F. Do not storein direct sunlight. Keep drums tightly closed when not in use and under dry air or nitrogen pressure of 2 - 3 psi after they have been opened. Store in a dry and well-ventilated area.

Properties

Typical Properties

	Value	Units	Test Method / Conditions
Flame Spread	max. 25	-	-
Smoke Development	max. 450	-	-
Nominal Thickness	4	inches	-
Viscosity (77°F, 25°C)	“A” 200 ± 50 (“B” 550 - 600 ± 50)	cps	-
Weight per gallon (approx.)	9.90 (4.50)	lbs. (kg)	-
Aged R-Value 75°F (24°C, at 1”, at 4”)	6.7 (26.8)	-	ASTM C518
Core Free Density	1.9 - 2.2	pcf	ASTM D1622
Open Cell Content	min. 90	%	ASTM D6226
Compressive Properties	25	psi	ASTM D1621
Tensile Strength	55	psi	ASTM D1623
Rate of Air Leakage	Meets Criteria	-	ASTM E283
Dimensional Stability(% volume change, -20°F, 158°F 100% R.T. Humidity, 158°F Dry)	28 days, -0.9 (28 days, 5.2) (28 days, -3)	-	ASTM D2126
Sound Transmission Class	39 (75)	-	ASTM E90 (ASTM C423)
VOC Content	Exceeds Criteria	-	CA01350
Fungi Resistance	No Growth	-	ASTM C1338
Bio Based Content	8	%	ASTM D6866

Technical Details & Test Data

RECOMMENDED PROCESSING TEMPERATURE RANGE

Component A	115 - 130°F
Component B	115 - 130°F
Hose	115 - 130°F
Pressure	900 - 1200 psi

Processing temperatures are critical to achieve viscosity toallow balanced pressure during spraying. Balanced chemical output pressures are important to producing good mix. Foam output pressures greater than 50 psi differential indicate either improper chemical temperatures, or worn gun/packing parts. Unequal pressures will cause poor chemical mixing throughthe module and uneven back pressure. A critical require mentfor good spray mixing requires appropriate tip/module sizing to the proportioner and adequate heating capacity. Unequal pressure (>50 psi) can cause excessive pump wear.

INITIAL PROCESSING RECOMMENDATIONS

Ambient	32 - 50°F	50 - 80°F	>80°F
Component A	130°F	125°F	110°F
Component B	130°F	125°F	110°F
Hose	130°F	125°F	110°F

These temperatures are typical of those required to produce acceptable product using conventional Gusmer or Graco equipment. It is the responsibility of the applicator to determine the specific temperature settings to match the environmental conditions and specific spray equipment.

PROCESSING PARAMETERS & PHYSICAL CHARACTERISTICS

Cream	0.5 - 1.0 sec
Tack Free Time	4.0 - 5.0 sec
Initial Cure Time	< 1 hour **
Pre-Heater/Hose Temperature	“A” and “B” ± 125°F (52°C) ±5°
Pressures	1100 - 1400 psi dynamic, at gun
Substrate/Air Temperature	40°F (4°C) min 95°F (35°C) max
Thickness Per Lift	2” (5 min cure between lifts) 3” 10 min cure between lifts

These settings will ensure thorough mixing in the spray gun mix chamber in typical applications. Optimum hose pressure and temperature may vary as a function of the type of equipment, ambient, and substrate conditions, and the specific application.It is the responsibility of the applicator to properly interpret equipment technical literature, particularly information that relates acceptable combinations of gun chamber size, proportione routput, and material pressures. The relationship between proper chamber size and the capacity of the proportioner pre-heat is critical. The nominal physical properties reported were achieved using a Graco H25 Proportioner and Fusin gun with #01 or #02 module with a static proportioner pressure setting of 1200 psi.Older equipment may be upgraded with “Arctic Booster Pack” heaters or minimum E-20 proportioners are required to adequately preheat the components. Spray guns such as; D-gun, GAP gun, GX-7, Fusion gun, or Probler guns fitted with smaller output tips(15 - 18lbs./min) for better spray control for stud wall applications at recommended processing temperatures recommended. **Complete cure will depend on temperature, humidity and degreeof ventilation. Complete cure usually occurs with in 24 - 72 hours. 

IGNITION BARRIER

ENVELO-SEAL™ 2.0 IB W is compliant with NFPA 286 Appendix X without a prescriptive ignition, thermal barrier or intumescent coating.

THERMAL BARRIER

IRC and IBC codes require that SPF be separated from the interior of a building by a thermal barrier, which is applied over SPF to slow thermal rise, and delay its involvement in a fire. A building code definition of an approved thermal barrier isone that is equal in fire resistance to ½ inch gypsum board.Thermal barriers limit the temperature rise of the underlying SPF to not more than 250°F (121°C) after 15 minutes of fire exposure in compliance with ASTM-E119 (Test Methods for Fire Tests of Building Construction Materials). Thermal barriers meeting this criteria are termed a “15 minute thermal barrier”or classified as having an “index of 15”. Specialty Products,Inc. recommends that an approved thermal barrier separate ENVELO-SEAL™ 2.0 IB W foam from the building interiorun less waived by a local building code official.

SURFACE PREPARATION

ENVELO-SEAL™ 2.0 IB W is suitable for application to most construction materials including wood, masonry,concrete, and metal. All surfaces to be sprayed with foam should be clean, and dry, free of dirt, oil, solvent, grease,loose particulates, dew, frost, ice and other foreign matterwhich could inhibit adhesion. Moisture content and surface conditions of substrate are critical to adhesion of ENVELO-SEAL™ 2.0 IB W and need to be verified by installing contractor in small test areas before proceeding with full application. Plywood, OSB, and lumber shall not have greaterthan 18% moisture content. Generally a primer is not required for these surfaces. On substrates where the moisture content cannot be determined or exceeds 18% a suitable primer is recommended. Adhesion spray tests may be performed bytest spraying small areas to check for good cell structure and adhesion. Warming of these surfaces during winter conditions may increase adhesion. CMU, structural, and poured-in-place concrete must have a minimum 28 day cure and moisture content below 18%. Residential footings, seam-walls, and basements generally do not require priming. Commercial controlled atmosphere structures, cold storage, and freezer buildings require and appropriate primer to insure adequate adhesion where curing agents may have been used.Generally use a two-component epoxy primer designed toseal and provide adhesion to concrete surfaces. Painted steel, galvanized steel, and aluminum panels: check surfaces formill oil used in the manufacturing process and moisture. All oil must be removed and the surface clean and dry before priming. Washed and dry painted steel panels may not require priming. All aluminum and galvanized panels must beprimed using Cardinal 7860-420 or Sherwin Willliams® DTM Wash Primer. 

EQUIPMENT

The proportioning equipment shall be manufactured specifically for heating, mixing, and spray application of polyurethane foam and be able to maintain 1:1 metering with a+2% variance and adequate main heating capacity to deliver heated and pressurized materials up to 150°F. Heated hose must be able to maintain preset temperatures for the full length of the hose. Minimum 2:1 on A side and 1:1 on the B sideratio feeder pumps are required to supply stored materialsthrough minimum 1/2-inch supply hoses. Pressurized andheated tank systems may be used if sized appropriately to provide adequate flow at maximum operating capacity and temperatures. Guns such as D-gun, Gap Pro, Fusion-gun,Probler with tip size approximately 16 lbs./min are suitable for most residential applications. Commercial cold storage, freezer applications and large metal buildings may utilize higher output guns.

SURFACE PREPARATION

ENVELO-SEAL™ 2.0 IB W is suitable for application tomost construction materials including wood, masonry, concrete, and metal. All surfaces to be sprayed with foam should be clean, and dry, free of dirt, oil, solvent, grease, loose particulates, dew, frost, ice and other foreign matter which could inhibit adhesion. Moisture content and surface conditions of substrate are critical to adhesion of ENVELO-SEAL™ 2.0 IB W and need to be verified by installing contractor in small test areas before proceeding with full application. Plywood, OSB, and lumber shall not have greater than 18% moisture content. Generally a primer is not requiredfor these surfaces. On substrates where the moisture content cannot be determined or exceeds 18% a suitable primer is recommended. Adhesion spray tests may be performed by test spraying small areas to check for good cell structure and adhesion. Warming of these surfaces during winter conditions may increase adhesion. CMU, structural, and poured-in-place concrete must have a minimum 28 day cure and moisture content below 18%. Residential footings, seam-walls, and basements generally do not require priming. Commercial controlled atmosphere structures, cold storage, and freezer buildings require and appropriate primer to insure adequate adhesion where curing agents may have been used.Generally use a two-component epoxy primer designed to seal and provide adhesion to concrete surfaces. Contact andSPI technician for suggested primer options. Painted steel, galvanized steel, and aluminum panels: check surfaces for mill oil used in the manufacturing process and moisture. All oil must be removed and the surface clean and dry before priming. Washed and dry painted steel panels may not require priming. All aluminum and galvanized panels must be primed using Cardinal 7860-420 or Sherwin Willliams® DTM Wash Primer.

Packaging & Availability

CONTAINER SIZES

This product sold in standard 100gallon drum sets and 500gallon tote sets. Available in other container sizes, Non-standard containers may require a longer lead time.

Storage & Handling

Shelf Life

“A” side 1 year (“B” side 6 months)