PUF-SealŽ PUF-SealŽ is a water-blown polymer that does not contain ozone-depleting chemicals and is highly resistant to acid-rock drainage (ARD). Within minutes after mixing two liquid reagents, a resin and catalyst, PUF-SealŽ expands rapidly to fill all voids and cracks in the opening. The resultant foam quickly hardens; forming a rigid plug firmly bound to the rock. The inert plug will not shrink and protects against ground water contamination. PUF-SealŽ is extremely stable and only breaks down when exposed to UV radiation (sunlight) or fire. Degradation can be prevented by covering the finished foam plug with at least 2-3 feet of soil cover. The central advantage of using PUF is that large mine openings can be closed rapidly using a small amount of materials and minimal equipment. PUF is lightweight, easily transportable in reasonable quantities to remote sites by backpack, 4-wheel ATVs, horse pack train or helicopter. While considered a cost effective alternative, PUF costs comparison need to be made on a case by case basis since PUF is usually utilized where other alternatives are not viable. PUF has also been successfully used to secure a culvert bat-gate to the portal of a mine adit after a determination has been made to preserve bat habitat. PUF-SealŽ is available in tough, portable bagged containers (boxed 1 cu yd) for transport into remote mine or construction site areas. This type of packaging is well adapted to sensitive (wilderness or historically significant) areas where only low-impact alternatives are acceptable. In addition, PUF-SealŽ is sold in bulk (drums approx. 15 cu yds) or totes (approx. 75 cu yds) amounts for mechanical application at those abandoned mines or construction sites with good road access. State and Federal agencies, such as the States of Colorado, New Mexico and California, BLM, Forest Service, National Park Service, and Native American tribes, all currently utilize polyurethane foam closures in their abandoned mines program. Mining companies use PUF in underground applications for ventilation walls, sealing water leaks, closing old drill holes and for air decking during quarry or open-pit blasting. PUF-Seal Technical Data Sheet HS 1117 - 2.6 PRODUCT DESCRIPTION: The HS 1117 - 2.6 polyurethane foam systems are designed for molding and void filling applications. The product has been designed to meet a specific variety of reactivity requirements without sacrificing product safety. HS 1117 - 2.6 has been formulated with water as the blowing agent. The unique handling characteristics of the HS 1117 - 2.6 series systems provide ease of mixing by hand, machine or portable (boxed) PUF, and produces a uniform product with excellent cell structure. This product does not contain CFC blowing agents or other Ozone Depleting chemicals (HCFC/141-B). PHYSICAL PROPERTIES OF HS 1117 - 2.6 PROPERTY TEST METHOD RESULTS Component A Component B VISCOSITY, CPS @ 74 F LIQUID DENSITY lbs/Gal. SP. GR. @ 74 F ASTM D-1638 ASTM D-1638 150-200 10.24 1.23 700-1000 8.69 1.04   REACTIVITY PROFILE Tested @ 74 F CREAM TIME, Seconds RISE TIME, Seconds DEMOLD TIME, Minutes 35-40 230-260 8 to 25   RATIO, Parts By Weight Component A Component B 52 48   PHYSICAL PROPERTIES ASTM METHODS TYPICAL VALUES DENSITY lbs/ft D-1692 2.6-2.8 COMPRESSIVE STRENGTH, psi Parallel Perpendicular TENSILE STRENGTH, psi SHEAR STRENGTH, psi Closed Cell Content % Water Absorption, lb/ft Water Transmission D-1621 D-1623 C-273 D-2856 D-2842 E-96 41 33 100 56 96 0.11 1.08 STORAGE: Component A (Isocyanate) The Isocyanate must be stored in tightly sealed containers and protected from moisture. The material should be stored at temperatures above 65°F. Component B (Polyol) The polyol is hygroscopic (moisture absorbent). Keep containers sealed to prevent moisture absorption. Store material at temperatures above 65°F. SAFETY INFORMATION: Material Safety Data Sheets (MSDS) are sent with each shipment of PUF-SealŽ products. These data sheets should be read and understood by all personnel who will come in contact with the product before the containers are opened. If the safety data sheets are lost or you require additional data sheets, please contact MineSeal, LLC at 1.888.732.5783 and replacements will be sent. Read Carefully. WARRANTY: The information herein is believed to be accurate and reliable as of the date of issuance, but are subject to change without prior notice. It is up to the User to contact MineSeal, LLC to verify the correctness prior to ordering or specifying this product. MineSeal, LLC warrants this product for merchantable quality only, does not warranty against unknown risks that may or may not be present, nor do we assume any responsibility for coverage., performance, or injuries resulting from the use of this product. NO OTHER WARRANTY OR GUARANTEE OF ANY KIND IS MADE BY MINESEAL, LLC, EXPRESSED OR IMPLIED, STATUTORY, BY OPERATION OR LAW, OR OTHERWISE, INCLUDING MARKETABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Failure to strictly adhere to recommended procedures shall relieve MINESEAL, LLC of all liability with respect to the product or the use thereof. The buyer assumes all risks whatsoever as to the use of these products and the Buyer’s exclusive remedy as to any breach of warranty or negligence claim shall be limited to the purchase price of the materials and agrees that any and all litigation proceeding shall be according to the laws of California an shall be filed in the County of Riverside, CA. Each person, firm, or corporation engaged in the application, installation, disposal or any other use of any of these products shall carefully determine whether there is a potential hazard associated with such product in a specific usage, and utilize all necessary precautionary and safety measures as outlined in Local, State or Federal regulations governing the use or disposal of these products or the construction and/or renovation of structures. 26 Sept 03 Rev 8 [ Home | History | Products | Services | PUF-SealŽ | About Us | Contact Us | Clients | Projects ]