Crystal Cast 2000 is a mercury-free, two component thermoset system which is water clear when cured. The versatility of polyurethane chemistry enables the polyurethane chemist to engineer polyurethane resin to achieve the desired properties. Polyurethane resins also have a good balance of elongation and hardness. It is recommended for miniatures, figures, models, patterns, sculptures, prototypes and production parts, in fact resin casting of just about any kind! Find professional casting resins. These are tough, durable, polyurethane elastomers varying from 30-95 Shore A, used for mould making or prototype parts requiring high tear strength and excellent abrasion resistance. Due to its low viscosity and various other properties, polyurethane resin is ideally suited for mold casting, regardless of whether the mold is lost or reusable. JavaScript seems to be disabled in your browser. Alchemie manufacture an extensive range of two component polyurethane systems for applications such as vacuum casting, RIM casting, clear casting, model making and tooling. They are very versatile when combined with other resins, and have a high film elasticity and adhesion to substrates. Print infocard. Alchemix PU 7270F is a high performance general purpose electrical encapsulant. Stronger than plaster especially for delicate or hollow castings, safer than polyester for … Low viscosity for detail. © Copyright Alchemie Ltd. 2020 | Design by. Crystal Cast 2000 is ideal for rapid prototyping, embedding or any type of clear casting application. PU 342 is a flexible polyurethane system of 55-60 shore A, used for mould making or prototype parts requiring semi rigidity. When poly resin is used to create foam, it needs to come into contact with water. Excellent self degassing characteristics, good adhesion and low moisture sensitivity. Polyurethanes are versatile materials that can be tailored for many different applications. The chart below show the physical properties of polyurethane. P2 cures white or can be pigmented any colour. For general casting of small to medium figures and objects, our Xencast P2 fast-cast is an easy-to-use and very popular all-rounder. Whilst a polyurethane system will initially cost more compared to an epoxy, it is far more cost effective in the long term. The Standard range is the starting point for most applications with the polyether/polyester chemistry allowing variations in processing properties (viscosity, pot life etc) and the cured properties (hardness, flammability, adhesion etc). The applications include PCB potting, cable jointing, transformer encapsulation and applications requiring (UL V-0 rated) for switches, sensors and … High Strength Flexible PU Matrix for PU3543, PU3544, PU3545, PU3546, PU3547, PU3548, PU3551, PU3549 and PU3550. Alchemie manufacture an extensive range of two component polyurethane systems for applications such as vacuum casting, RIM casting, clear casting, model making and tooling. Polyurethanes as an elastomer have superior toughness and abrasion, in such applications as solid tyres, wheels, bumper components, or insulation. already with a certain amount of inert filler material). Crystal Cast 1000 is a mercury-free, two component thermoset system which is water clear when cured. ALCHEMIX PU 7450 is a low viscosity polyurethane resin which offers low exotherm whilst curing. Low to medium pressure RIM where high thermal properties are required. negatives and fast reproduction models. Xencast® P2 is an easy-to-use, cost-effective fast-cast polyurethane (PU) resin system with excellent surface detail and reliability. Polyurethanes (PUR) are one of the largest classes of polymers with properties that can be tailored over a wide range for a large number of application. ALCHEMIX PU 7230 is a polyurethane resin with a glass like finish when cured. The range of polyurethane resins can be divided into four groups. Under bonnet. *UL94-VO Yellow certificate number E213605. Our complete range of two-part polyurethane casting resins. Polyurethane casting resins are available with a wide range of properties including various pot-life and cure times, shore harnesses, clarity and strength. The first Polyurethanes were manufactured as millable gums and so could be processed on normal rubber manufacturing equipment. Print Share. Polyurethane resin is considered versatile because it can be used to produce an array of items, from inks to plastics. Polyurethanes are versatile materials that can be tailored for many different applications. Polyurethanes are easily foamed in a controlled process to produce a wide range of densities. ALCHEMIX PU 343 is a semi flexible polyurethane system of 87 – 92 Shore A, used for mould making or prototype parts requiring semi rigidity. Low to medium pressure RIM where high strength is required. Polyurethane performs well for hardness, tensile strength, compression strength, impact resistance, abrasion resistance and tear strength. Polyurethane's mechanical properties can be isolated and manipulated through creative chemistry which creates a number of unique opportunities to solve problems with performance characteristics unequaled in any other material. PU7270F has an excellent hard, glass like finish and is very low in viscosity resulting in a resin system which is flame retardant, has excellent adhesion, low stress thermal cycling characteristics whilst still retaining the flow properties necessary to fill intricate units. A broad field of applications where a high degree of flexibility is required. The system has a fast cure and exhibits a rapid development of properties. Produces ultra fine detail and dimensional stability. This is possible because the material can be manipulated to great extremes, which can change properties such as the hardness and elasticity. Urethanes are polymers with a wide range of properties, strengths, and uses, from custom elastic machine parts and pliable molds to hard plastic prototypes, coating and lenses. The chemistry is the reaction of two or more functional monomers (like an isocyanate with any hydroxyl groups) to yield the urethane linkage. Please see Tech Data for Matrix. ALCHEMIX PU 7251 is a two-part low viscosity polyurethane resin system that cures to give a flexible product. Polyurethane Properties. Use as insulation and other applications are restricted by an upper temperature capability of about 250 F. Polyurethanes do not survive well in direct sunlight or in contact with most organic solvents. Physical & Electrical Properties: Conditions: State: ASTM: Specific Gravity 1.03 - 1.5 : D792: Water Absorption (% weight increase) 0.2 - 1.5: after 24 hrs: D570: Dielectric Strength (V/mil); 1/8" thick specimen unless noted 300 - 500 : D149 In fact, the lifespan of the PU system is roughly double that of the epoxy, clocking an impressive ten-year’s compared to the epoxy’s five. In many cases, it's produced in a liquid form and can be poured into molds. Recognised concerns are illustrated with a dark red icon. Classes of Polyurethane Resins: Properties & Applications Print Share. The diverse properties of castable polyurethane make it the leading choice of engineers looking for long lasting materials for their high load, high stress environments. All the products in the range retain flexibility down to ?40°C and have excellent electrical properties including low dielectric loss. Polyurethane routinely outperforms plastic, rubber and steel in its overall ability to resist harsh environmental factors such as abrasion, heat, solvents, oil and acid. They are easily removed from delicate components, and have excellent thermal cycling properties, placing no stress on components at extreme low temperatures whilst protecting the electronics from damaging moisture etc. ALCHEMIX PU 7241 is a fast cure polyurethane resin with excellent flow characteristics, good adhesion and moisture resistance. Polyurethane is a polymer composed of organic units joined by carbamate links. At MB Fibreglass we specialise in a wide range of high-performance liquid plastics suitable for a variety of modelling and casting projects. PU systems also benefit from their increased wear, abrasion and impact resistance properties. One of the more popular applications of polyurethane resin is … Coming Soon. ALCHEMIX PU 7270 is a flame retardant polyurethane resin with a low viscosity, excellent cosmetic finish, very good low stress thermal cycling and adhesion. Can be used at elevated temperatures. Otherwise, polyurethane casting resin can only be used on dry surfaces in order to maintain its desirable properties. They are used for insulation, elastomers, adhesives, and foam liners for clothing. IUPAC names 1 Other identifiers 1 . Polyurethanes are a family of resins that offer ruggedness, fast cure time and flexibility. Polyurethane resin Advantages very fast-working (average 3-4mins pot-life and 30mins demould). From this relatively simple start Polyurethanes have expanded to embrace a bewildering array of products. The system exhibits rapid development of properties while retaining a relatively long usable life, © Copyright Alchemie Ltd. 2020 | Design by. Polyurethane Floor Coatings. Once cured the material is water resistant, dig-outable and has excellent stability under thermal cycling. Polyurethane Resins (PU) for Adhesives & Sealants: A Comprehensive Guide Polyurethane is a versatile polymeric material that can be tailored to meet the demands of a number of adhesive and sealant systems. Polyurethane resin flooring is one of the most used types of resin floor system along with epoxy resin. Crystal Cast 1000 is a mercury-free, two component thermoset system which is water clear when cured. ALCHEMIX PU 7301 is a high performance electrical encapsulant with very low in viscosity, and excellent flow properties allowing intricate unit to be potted. box 339 brookvale, nsw 2100 australia tel: 02 9938 1566 fax: 02 9938 1566 2. Polyurethane resinsare copolymers made up of polyol and isocyanate components. They can be thermosetting or thermoplastic, rigid and hard or flexible and soft. Benefits of Polyurethane. The Water Resistant Resins are produced from uniquely hydrophobic polyols and are formulated to add, for instance, flame retardancy. The applications include PCB potting, cable jointing, transformer encapsulation and applications requiring (UL V-0 rated) for switches, sensors and encapsulation. Polyurethane Resin. PU adhesives are often used as two-component adhesives. Automotive. Water clear, mercury-free, UV stable casting resin for bulk castings. Crystal Cast 1000 is ideal for rapid prototyping, embedding or any type of clear casting application. The minimal shrinkage, very low exotherm during cure, and high flexibility of the cured material ensures that the component is prevented from receiving stresses transferred from the resin even under extreme thermal cycling. ALCHEMIX PU 7301, is flame retardant, has excellent adhesion and low stress thermal cycling characteristics. The Standard range is the starting point for most applications with the polyether/polyester chemistry allowing variations in processing properties (viscosity, pot life etc) and the cured properties (hardness, flammability, adhesion etc). Polyurethane Casting Resin. Crystal Cast 2000 is ideal for rapid prototyping, embedding or any type of clear casting application. A wide variety of hardness, cure speeds, viscosities, mechanical and thermal properties are possible. The main differences between epoxy and polyurethane all depend on what product is being used. Polyurethane Resin. Choice of unfilled or pre-filled brands (i.e. Polyurethane Resin. The product is approved to UL94 V-0. Polyurethane is widely used in automobiles. ALCHEMIX PU 3434F is a tough flexible polyurethane system of 78 – 83 Shore A, designed specifically for offshore applications requiring good tensile strength and chemical resistance. Polyurethanes were invented to offer an alternative material to natural rubber. Applications included clam-shell cable jointing, control panel displays and sealing outdoor enclosures. They are based on polymers, but often contain other components such as various additives. TPU provides a large number of physical and chemical property combinations for the most demanding applications such as automotive, wires and cables, breathable films for leisure, sports and textile coatings, weatherable, non-yellowing films etc. JavaScript seems to be disabled in your browser. A wide variety of hardness, cure speeds, viscosities, mechanical and thermal properties are possible. General mouldmaking for producing replicas in polyester, Low to medium pressure RIM where high strength is required. Rigid polyurethane foams have become widely used as insulation materials because of their combination of low heat transfer and good cost effectiveness. Polyurethane resin is considered versatile because it can be used to produce an array of items, from inks to plastics. Physical Properties Of Polyurethane The physical properties of polyurethane are considerable. You must have JavaScript enabled in your browser to utilize the functionality of this website. Polyurethane coating has poor mechanical properties, thermal stability and corrosion resistance. Generally speaking, a polyurethane resin has a better range of resistance to chemicals. Crystal Cast 3000 is a mercury free thermoset system which is water clear when cured. ALCHEMIX PU 3426 is a tough flexible polyurethane system of 57 - 63 Shore A, designed specifically for offshore applications requiring good tensile strength and chemical resistance. Crystal Cast 2000 is a mercury-free, two component thermoset system which is water clear when cured. Since polyurethanes contain two types of monomers, which polymerise one after the other, they are classed as alternating copolymers. : eur5617a supplier: h k wentworth pty limited p.o. The hardness of a cured polymer is measured on the Shore Durometer Scale, with higher numbers representing stiffer substances. Polyurethane polymers are traditionally and most commonly formed by reacting a di- or triisocyanate with a polyol. Polyurethane adhesives, also known as PU adhesives, are adhesives used for higher strength constructions and can be used as both inelastic and permanently elastic adhesives. Especially good in thin sections. Crystal Cast 1000 is ideal for rapid prototyping, embedding or any type of clear casting application. Pattern and modelmaking. Both the isocyanates and polyols used to ma The Re-enterable Range can be clear and unfilled or filled and flame retardant. However, if you want to cast polyurethane, there are two things to consider: ... Properties of concern are calculated at four "levels" of certainty: "Recognised" - meaning that the concern is indicated in an official source. While most polyurethanes are thermosetting polymers that do not melt when heated, thermoplastic polyurethanes are also available. Properties. Thermoplastic polyurethane (TPU) is a melt-processable thermoplastic elastomer with high durability and flexibility. ALCHEMIX PU 3435 is a tough elastomeric polyurethane system designed specifically for offshore uses requiring high tensile strength and chemical resistance. The foam in the comfortable car seats, the … Polyurethane is an extremely versatile elastomer used in countless applications worldwide. ALCHEMIX PU 7250 is a Semi-flexible adhesive, retaining all electronic properties. The system exhibits a rapid development of properties while retaining a relatively long useable life. You must have JavaScript enabled in your browser to utilize the functionality of this website. This is possible because the material can be manipulated to great extremes, which can change its properties from a soft pliable rubber to a very hard and rigid plastic. Crystal Cast 3000 is ideal for bulk casting applications such as artwork, sculptures, embedding decorative objects and other similar applications. 11012 - polyurethane resin 5617a revision date:may 2003 safety data sheet polyurethane resin 5617a 1. identification of the substance/preparation and the company: product name: polyurethane resin 5617a part no. Applications included clam-shell cable jointing, control panel displays and sealing outdoor enclosures seats the! Utilize the functionality of this website in order to maintain its desirable properties mercury-free, component! Components, or insulation of polyurethane resin properties combination of low heat transfer and good effectiveness. Resin flooring is one of the more popular applications of polyurethane are considerable this website 9938! 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