Esculand Molecular Model Kit Organic Chemistry, 239 Pc. Set, Teacher, Student, and Classroom Ball and Stick 3D Modeler, Educational Science with Atoms, Bonds, and Tool
【419PCS】Don't buy a defective kit from one of our competitors! Our Chemistry Molecular Model Kit was originally designed as a custom kit for a college professor who selected every piece carefully for use in his own classroom,it contains 179 atom pieces made up of different elements.
155 medium-length hard bonds,25 long flexible bonds (good for double and triple bonds),30 V-bonds (for space-filling models).
30 lone pair of electrons.With this set,you can build all common molecules and ions!.
【Four Tetrahedral Holes in All Octet Rule Obeying Atoms】Our kit places 4 holes on all atoms with tetrahedral electron geometry:carbon,oxygen,nitrogen,sulfur,phosphorous all have 4 tetrahedral holes,which allows to build these types of molecules and ions that have more than the normal valence( having positive formal charges).With this kit,you can not only build all the models other kits can build,you can build structures other models cant build like carbon monoxide(CO) and ammonium ion(NH4+).
【Geometries of Metal Complexes】What makes this kit unique is that it also includes 4 of gray balls representing metals with 5 holes at 120 degree+90 and 4 of in a different shade of gray that are 6 holes at 90 degree,which can build all the common geometries ....
VHB Tape: mounting tape with foam core fits into the grooves and through curved edges for a neat surface appearance. This bonding tape provides immediate handling strength by eliminating the need for rivets, screws, spot welds, and liquid adhesives.
Bonding Strength: acrylic adhesive tape can be mounted onto a wide variety of materials. The foam core tape instantly bonds to plastics, pre-painted surfaces, or metals with high and low surface energies.
Applications: high bonding tape can be used for indoor/outdoor applications including assembly of signs, holders, doors, windows, electronics, and industrial maintenance. UL 746C listed tape offers strong retention in extreme environments.
Resistivity: sealing tape is highly resistant to UV light and chemicals to create perfectly sealed bonds even in hot and cold cycling temperatures. This multipurpose tape also resists migration of plasticizers in vinyl substrates.
Specifications: 0.045 in. thick VHB tape circles measure 2.5 in. in diameter. The industrial-grade tape is rated for its durability and strong bonds even on mismatched, textured surfaces.
West System 650-8 G/Flex Toughened, Versatile, Liquid Epoxy Resin and Epoxy Hardener, Permanent Waterproof Bonding Of Fiberglass, Ceramics, Metals, Plastics, Damp & Woods, 4.5 Ounce x 2 Bottles
...LENT ADHESION adhesion to hard-to bond woods. This toughened, versatile, thickened epoxy is for permanent waterproof bonding of fiberglass, ceramics, metals, plastics, damp and difficult-to-bond woods. A bit more flexible than standard epoxies and polyester, but much stiffer than adhesive sealants. Makes structural bonds that can absorb the stress of expansion, contraction, shock, and vibration..
IDEAL FOR BONDING dissimilar materials. Mixed at a 1:1 ratio, this 2-part epoxy gives you 46 minutes of pot life at 72°F and an open (working) time of 60-75 minutes. It reaches an initial cure in 3 to 4 hrs, workable cure in 7-10 hours, and full cure in 24 hours..
OFFERS GREATER FLEXIBILITY than traditional epoxies or polyester resins. Yet it is much stiffer than adhesive sealants. With a modulus of elasticity of 150,000 PSI, this epoxy bonds tenaciously to a metals, plastics, glass, masonry, and fiberglass..
BONDS MANY MATERIALS including dissimilar ones. G/flex has a superior grip so that it can be used to bond to metals, plastics, glass, masonry, and fiberglass. G/flex is ideal for repairs to aluminum boats and polyethylene and ABS canoes and kayaks. It can also be used to wet out and bond fiberglass tapes and fabrics..
All Purpose Adhesive, 2 oz, Industrial Strength, Welder
Clear, industrial strength all-purpose, waterproof adhesive that bonds porous and non-porous materials together in both outdoor and indoor applications.
Can be used on plastic, wood, metal, rubber, vinyl, cloth, tile, ceramic, glass, Formica, cement, brick and more.
Permanently bonds, fastens, protects, seals, and caulks thousands of everyday items.
3M 465 Adhesive Transfer Tape - 12 in. x 15 ft. High Tack Splicing Tape Roll with Easy Liner Release. Tapes and Sealants
Acrylic Adhesive Tape: high-tack adhesive tape bonds immediately upon contact making a strong, permanent bond. The tape can be used to mount similar and dissimilar surfaces while withstanding the most challenging environments.
Utility Range: adhesive transfer tape adheres to multitude of substrates including metals, glass, most paper stocks, cardboard, and wood. It also bonds to HSE plastics such as ABS and Polycarbonate.
Robust Construction: transparent tape with U.S. Government MIL-P-19834B Type-I specification is highly resistant to UV, solvent, moisture, and humidity – creating perfectly sealed bonds in rugged industrial settings.
Applications: adhesive tape offers manual handling for industrial applications such as mounting, attaching, laminating, and core starting. It comes with easy liner release for easy manual and hand applications.
Specifications: 0.002 in. thick, 12 in wide and 15 ft. long splicing tape roll can be used in high temperature up to 121 deg. C.
