SEALANT SILI CNSTRN WHITE 10OZ

  • Item No 648-6716
  • Manufacturer OSI
  • Mfr. Item No 1493960
$10.92
  • Min Order 12
  • Unit of Measure EA
Sold in full case only.
Ships in 4-5 days
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  • Description
  • Additional Details
  • Purchase History
  • General Ledger Coding
Some product details generated with AI assistance — verify specs before ordering.

OSI HM270 Construction Silicone Sealant is a professional-grade, one-part RTV acetoxy silicone designed for high-performance glazing and sealing applications. This medium-modulus sealant cures at room temperature upon exposure to atmospheric moisture, forming a permanently flexible and watertight bond that accommodates up to ±25% joint movement. Engineered for durability, it withstands extreme temperatures ranging from -60°F to 400°F and offers exceptional resistance to UV light and harsh weather conditions. It is ideal for sealing non-porous materials such as glass, ceramics, aluminum, and primed steel in applications like skylights, HVAC ductwork, and window installations. Note that this silicone is not paintable and is intended for use on non-porous surfaces.

OSI Construction Silicone Sealant, Series: HM270, 10 oz Capacity, Cartridge Packing, 30 g/l VOC, Paste, White, 31 ft at 1/4 in Bead, 14 ft at 3/8 in Bead Coverage, <25 min Tack-Free Drying Time, 24 hr Functional Cure, Acetic Acid Odor/Scent, >200 deg F Flash Point, Media: Foam, Dry Chemical and Carbon Dioxide, 1.01 Specific Gravity


Packaging/Shipping Size and Weight: Length: 1.92"  |  Width: 1.92"  |  Height: 12.4"  |  Weight: 0.77 lbs
Features
  • One-part RTV silicone cures with ambient moisture at room temperature
  • Medium modulus formulation balances flexibility and tensile strength
  • Permanently flexible bond accommodates ±25% joint movement
  • Exceptional temperature resistance from -60°F to 400°F
  • UV and weather resistant for long-term outdoor reliability
  • Excellent primerless adhesion to most non-porous building materials
  • Skins in under 10 minutes and is tack-free in 25 minutes
Product Details
Applicable Materials:Glass, Ceramics, Aluminum, Primed Steel and Plastics
Application Method:Caulking Gun
Application Temperature:-30 TO 110
Base Type:One-Part, Acetoxy, Moisture-Curing Silicone Rubber
Coverage:31 ft at 1/4 in Bead, 14 ft at 3/8 in Bead
Drying Time:<25 min Tack-Free
Flash Point:>200
Form:Paste
Functional Cure:24
Media:Foam, Dry Chemical and Carbon Dioxide
Odor Scent:Acetic Acid
Packing Type:Cartridge
Resists:Water and Weather
Series:HM270
Shore Hardness:18
Size:10 fl oz
Specific Gravity:1.01
Standards:ASTM C920, Type S, Grade NS, Class 25
Temperature Range:-10 TO 250
Tensile Strength:>170
Usage:For Potable Water Systems
VOCContent:30
Color:White
Finish:Paste
Material:Silicone
Application Temperature:-30°F to 110°F
Service Temperature Range:-60°F to 400°F
Cure Time:24 hours
Tack-Free Time:25 minutes
Joint Movement Capability:±25%
VOC Content:30 g/L
Substrate Compatibility:Glass, Aluminum, Ceramic, Primed Steel, Plastics

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General Ledger Coding

General Ledger Coding is a value added service provided for you at no additional cost.

General Ledger Coding makes accounting easier by providing you with a calculated total of purchases based on your General Ledger Codes.

In addition to traditional General Ledger Summary provided at time of invoice, we can also provide quotes and order acknowledgements with General Ledger Coding as well. We also give you the ability to change a GL Code for one or all items for renovation projects that may utilize a single GL Code. We can also code any of our "extended inventory" items with your General Ledger Code at the time of quote, order confirmation and invoicing as well. We can code our item numbers directly to your GL Codes should our item categories not align directly with your GL Code Categories.

Please contact us if you wish to implement our General Ledger Coding feature.

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