0
Basket
My account
B2B
Store
      Categories
      Products
      searching for products ...
      There is no result for »«.
      • Plates
      • Hard Synthetic Sheets
      • Rigid Foam Sheets
      • Composite Sheets
      • Textured Sheets
      • Multi-Wall Sheet
      • Wood Panels
      • Foam Material & Foam Rubber
      • Soft PVC Mats
      • More categories ›››
      • Foils
      • Polypropylene Film
      • Colour Filter Film
      • Rubber sheets
      • Polyester film
      • Lenticular Film
      • Rigid PVC Film
      • Soft PVC Film
      • PE sheets
      • More categories ›››
      • Sheets & Mesh
      • Sheets
      • Perforated Sheets
      • Corrugated Sheets
      • Wire Mesh
      • Wire Mesh (Chicken Wire)
      • Wire Grating
      • Expanded Metal (Expanded Mesh)
      • Profiles
      • Frame Profiles
      • H-Profile Strips
      • I-Profile Strips
      • L-Shaped Profile
      • T-Profile Strips
      • U-Profile Strips
      • Z-Shaped Profile
      • Special Profiles
      • Tubes
      • Round Tube
      • Semicircle Tube
      • Square Tube
      • Rectangular Tube
      • Tube Connectors
      • Model Making
      • Model Figures
      • Building Terrain & Vegetation
      • Model Vehicles
      • Modelling Accessories
      • Modelling Board
      • Model Tubes
      • Model Bars & Rods
      • Modelling Paint
      • More categories ›››
      • Mold-making
      • Casting Compound
      • Modelling Clays
      • Casting Resins & Aids
      • Plaster
      • Design Plaster
      • Clay
      • Reinforcement & Support Materials
      • Auxiliaries & Accessories
      • Tables
      • Desks
      • Table Frames
      • Table Accessories
      • Trestles
      • Chairs & Stools
      • Office Chairs
      • Stackable Chairs
      • Work stools
      • Seating & Seat Cushions
      • Lighting
      • Workplace Lighting
      • Light Boxes
      • Pendant Lamps
      • Picture Frames
      • Picture Frames
      • Passepartouts
      • Glass Picture Holder
      • Photo Mounting
      • Tools for Picture Framing
      • Office Supplies
      • Workplace Equipment
      • Folders & Books
      • Files & Sleeves
      • Flip Charts / Whiteboards
      • Visitor & Index Cards
      • Labels & Stickers
      • Paper & Printer Film
      • Mailers
      • Stationery
      • Gift Packaging
      • Envelopes & Covers
      • Calendars
      • Photo Albums & Concertinos
      • Cards
      • Pens & Writing Materials
      • Ballpoint Pens
      • Fountain Pens
      • Ink
      • Pencils
      • Marker
      • Calligraphy Pens
      • Paint Brushes & Brush Pens
      • Aquarelle Pencils
      • More categories ›››
      • Technical Drawing
      • Rulers
      • Drafting Set Squares
      • Scale Rulers
      • Compass
      • Drafting Templates
      • T-Squares and Straight Edges
      • Small Items
      • Clips
      • Magnets
      • Staples
      • Needles and Pins
      • Hooks
      • Eyelets & Rivets
      • Suction Cups / Suction Pads
        • Paints
        • Acrylic Paints
        • Oil Paints
        • Watercolours
        • Gouache Paints
        • Pastel Crayons
        • Textile Dyes & Fabric Paints
        • Sprays
        • Gold Leaf & Silver Leaf
        • Brushes
        • Artist Brushes
        • Hobby Brushes
        • School Paintbrush
        • Paintbrushes
        • Brush Storage
        • Brush Sets
        • Other Colour Application Products
        • Pens & Writing Materials
        • Ballpoint Pens
        • Fountain Pens
        • Ink
        • Pencils
        • Marker
        • Calligraphy Pens
        • Paint Brushes & Brush Pens
        • Aquarelle Pencils
        • More categories ›››
        • Art Supplies
        • Colour Systems
        • Drawing & Painting Accessories
        • Easels
        • Painting Surfaces
        • Storage & Presentation
        • Stretched Canvases & Screens
        • Picture Frames
        • Picture Frames
        • Passepartouts
        • Glass Picture Holder
        • Photo Mounting
        • Tools for Picture Framing
        • Adhesives & Glues
        • All-Purpose Glues
        • Spray Adhesives
        • Glue Sticks
        • Super Glue
        • Hot-Melt Glues
        • Photo Adhesives
        • Glue
        • Paste Glues
        • Adhesive Tapes
        • Double-Sided Adhesive Tape
        • Adhesive Film
        • Fabric Tape
        • Washi Tape
        • Motif Stickers
        • Film Adhesives
        • Packaging Tape
        • Masking Tape
        • More categories ›››
        • Adhesive Films
        • Coloured Adhesive Film
        • Metallic Adhesive Films
        • Mirror Adhesive Film
        • Lampshade Foil
        • Double-Sided Adhesive Film
        • Decorate Adhesive Film
        • Mirror Panels
        • Tabletop Paint
        • More categories ›››
        • Other Adhesives
        • Adhesive Dots
        • Adhesive Pads
        • Adhesive Putty
        • Bumper
        • Felt Gliders
        • Velcro Dots
        • Craft Paper
        • Handicraft Folders
        • Coloured paper
        • Origami & Folding Paper
        • Wrapping Tissue
        • Transparent Paper
        • Crepe paper
        • Christmas stars
        • Proto-paper
        • Cardboard
        • Corrugated Cardboard
        • Honeycomb
        • Grey Cardboard
        • Cardboard
        • Solid Board
        • Presentation Boards
        • Pressboard
        • White Cardboard
        • More categories ›››
        • Carton
        • Background Paperboards
        • Bristol Board
        • Chromolux Board
        • Fancy Board
        • Graphic Board
        • Index Board
        • Mirror Board
        • Natural Cork Boards
        • More categories ›››
        • Craft Material
        • Rubber Rings
        • Wires
        • Wooden Spatula
        • Game Pieces
        • Cork
        • Stamped Cardboard Pieces
        • Photo Corners
        • Googly eyes
        • More categories ›››
        • Small Items
        • Clips
        • Magnets
        • Staples
        • Needles and Pins
        • Hooks
        • Eyelets & Rivets
        • Suction Cups / Suction Pads
        • Craft Supplies
        • Bookbinding Essentials
        • Stamps
        • Blank Products
        • Letters & Numbers
        • Hangers & Tags
        • Stickers
        • Craftwork Glue
        • Carving
        • More categories ›››
        • Craft Blanks
        • Spheres & Hemispheres
        • Cubes
        • Easter Eggs
        • Rings
        • Cones
        • Discs
        • Triangles
        • Stars
        • Cutting Tools
        • Blade
        • Art Knives
        • Scissors
        • Knives
        • Cutting Mats
        • Cutting rulers
        • Passepartout Cutters
        • Passepartout Cutters
        • More categories ›››
        • Measuring Tools
        • Steel Ruler
        • Folding Rule
        • Calliper
        • Measuring Tape
        • Protractor
        • Spirit Levels
        • Measuring Cups
        • Marking Tools
        • More categories ›››
        • Hand Tools
        • Drills
        • Pliers
        • Hammers
        • Hand Saws
        • Hole Punch
        • Modelling Tools
        • Tweezers
        • Screwdrivers
        • More categories ›››
        • Tool Kits
        • Mixing Cups & Spatulas
        • Fillers
        • Sprays
        • Loupes
        • Squeegee
        • Polishing Agents
        • Sandpaper
        • Handpads
        • More categories ›››
        • Architectural model making
        • Structural elements
        • Flooring
        • Roofs & Facades
        • Details & Accessories
        • Contour layers
        • Columns & Beams
        • Vegetation & Terrain
        • Glazing
        • More categories ›››
        • Moulding
        • Moulding
        • Modelling
        • Casting
        • Filling & Sanding
        • Laminating
        • Drawing & Sketching
        • Layouts
        • Technical drawing
        • Calligraphy & ink painting
        • Pen drawing
        • Charcoal and pencil drawing
        • Pastel and chalk drawing
        • Fineliner drawing
        • Painting & Color design
        • Acrylic painting
        • Colour pasting
        • Colouring
        • Decorative painting
        • Fabric dyeing
        • Fabric painting
        • Gilding
        • Glass painting
        • More categories ›››
        • Handicrafts & DIY
        • Paper and cardboard handicrafts
        • Standard handicrafting materials
        • Bookbinding
        • Designing cards & Scrapbooking
        • Blank products for DIY design
        • Brandmalerei
        • Photo gluing
        • Lamp making
        • More categories ›››
        • Decoration
        • Christmas Decorations
        • Room Decorations
        • Table Decoration
        • Sewing Supplies
        • Threads & Yarns
        • Buttons
        • Zippers
        • Filler Materials
        • Fleece Interlining & Fillers
        • Sewing Accessories
        • Buckles
        • Application Products
        • More categories ›››
        • Leisure & Technology
        • Mobile Phone Accessories
        • Cable Management
        • Lamps
        • Party & Festivals
        • Outdoor Accessories
        • Toy
        • Intelligent Plasticine
        • Assembly Kits
        • Puzzles
        • Plaster & Tattoos
        • Soap Bubbles
        • Poster
        • Other Toys
        Mold-makingCasting Resins & Aids

        Polyester Casting Resins

        Casting Resins & Aids

        Application

        Color Group

        Brand

        Price

        2 article   /   4 Variants
        View
        Sort by: Relevance
        • Relevance
        • Topseller
        • Price - lowest first
        • Price - highest first
        • Polyester casting resin GTS, crystal clear
          2 Variants
          Polyester casting resin GTS, crystal clear
          from 19,90 €
          2 component casting resin from unsaturated ortophtal acid and polyester resin and MEKP hardener, preaccelerated, medium reactivity, styrene content is 35%, without fillers, hard, very low viscosity (pours well), when...
        • Polyester casting resin R&G, crystal clear
          2 Variants
          Polyester casting resin R&G, crystal clear
          from 12,20 €
          2 component casting resin from unsaturated ortophtal acid polyester resin and MEKP hardener, preaccelerated, medium reactivity, styrene content is 35%, without fillers, hard, very low viscosity (pours well), when...
        Information about Polyester Casting Resins

        Unsaturated polyester resins (UP resins) belong to the duroplast family of plastics. They can not be re-formed once they have hardened, are insoluble, cannot be melted or welded and will char at high temperatures. Cured polyester resins are highly transparent but are only UV resistant when they contain the requisite additives – as is the case with those we have on offer. Polyester casting resins can be successfully coloured using DYES FOR SYNTHETIC RESINS.

        Cold curing of the UP resins requires the addition of a peroxide hardener (benzoyl peroxide or ketone peroxide: e.g. MEKP) and small amounts of an accelerator in order to initiate the chemical reaction. The resins that we have on offer have been pre-accelerated at the factory with a cobalt accelerator.

        These so-called unsaturated polyester resins (UP) are the right choice anytime transparent bodies need to be created – that means not only for casting seahorses in synthetic blocks but for model making as well. Among the disadvantages associated with this material is the fact that a certain degree of shrinkage (approximately 7 to 10%) must be taken into account when working with it. The most common use of UP resins is in the production of glass fibre reinforced plastic.

        Storage and Shelf Life: Polyester resins must be kept closed when being stored in a cool place protected from light. They can be stored between 3 and 6 months at room temperature (preferably colder) in the closed original packaging.

        Safety at the Workplace: Because of the styrene that it contains, polyester casting resin is inflammable and hazardous to your health. The MEKP hardeners work as fire accelerators and are caustic. There must be good ventilation at the workstation and contact with skin and eyes should be avoided at all costs. Wearing chemical resistant GLOVES and protective glasses are therefore highly recommended. Furthermore, a barrier cream is recommended for the cleaning and care of your skin. Beyond that, polyester casting resin is hazardous to water and must not be allowed to enter into the plumbing, into bodies of water or the soil.

        Please take note of the dangers and the safety information on the package and the information under the title “Safety at the Workplace” found under “Casting Resins”. We will be glad to send you safety data sheets upon request.

        Treatment: In the case of polyester resins, the mixing ratio is dependent on the amount being used. The small amount of hardener required is most accurately calculated as a percentage of volume and dispensed by employing a pipette or a DISPOSABLE SYRINGE. The working time and the de-moulding time are also determined by the amount of hardener used. The relevant data can be found at the individual products. If the resin is worked with in low temperatures (but not less that 16 °C!), the amount of hardener can be slightly increased. All in all, it is advisable not to try to force the curing process through the addition of large amounts of hardener because that can lead to stresses or even cracks in the material and to a yellowing of the material to boot. Amounts of hardener larger than 5% will make the resin soft.

        Metallic, inorganic or organic objects can be used for the purposes of embedding as long as they are completely dry. Moisture – or also older MEKP hardener – will cause striations to form in the material. Casting moulds can be made from materials that have smooth, polished surfaces (glass, metal, plastic). Transparent moulds allow one to check on the development of bubbles during the casting process. Moulds that are made from non-releasing materials must definitely be treated with a release agent beforehand. Silicone moulds and PP or PE moulds will release themselves from the moulded piece. But it should be noted that even with these moulds, some adhesive residue could occur. The following can help in these instances:

        • Use a RELEASE AGENT,
        • Heat the mould before the pour,
        • Add a bit more hardener,
        • Pour the mixture into the mould shortly before it begins to gel.

        Large volumes of polyester casting resin can be used at one time but remember that there is the disadvantage that is has much more shrinkage when hardened (7 to 10%!) (as compared to PUR casting resin). Large blocks should not be poured all at once because the resulting heat from the reaction can create a high degree of tension in the material and thereby cause cracks. It is much better to do the work in many stages of 2 cm thick layers.

        Embedding of objects is done in the following manner: first a layer of resin should be poured on the bottom of the mould to form a base and then be allowed to begin curing – the resin becomes a gel. The dry object should them be placed upon this layer whereby it will no longer sink into it. In order to be able to better monitor and remove any bubble inclusions, 10 to 20 mm thick layers should then be poured one after the other. Each layer should be added after the heat from the reaction occurring in the previous layer has subsided. As it hardens, the moulded piece usually separates itself from the wall of the mould by virtue of the shrinkage that is typical for polyester. As a result, it is possible that, especially in the case of smaller objects, a small amount of sticky residue may remain on the surface. This is caused by contact with oxygen in the air. This smudgy, incompletely hardened film-like layer can be removed by means of WET SANDPAPER with 500 to 700 grit or by washing it away with ACETONE.

        Similarly, when a mirror smooth surface is the goal, in any area where the resin is subject to contact with the air it must be covered up before it begins to gel but after all the air bubbles have risen to the top. For this purpose, glossy POLYPROPYLENE or hostaphan film will serve you well. If the cast piece is not covered as described, the surface can be somewhat gluey after curing but that can be dealt with as described above.

        Exhaust gases that have become concentrated in air spaces like bubbles or have simply developed under the covering film during the hardening process of UP resins can have a negative effect on the curing process. Polyester resins should therefore be poured as free of bubbles as possible and de-moulded or, alternatively, have the covering film removed as quickly as possible after the cessation of the reaction heat!

        In order to attain a high degree of hardening, objects that were produced at room temperature can be further hardened by exposing them to 80 °C heat (post curing). Both hardened UP resin and casting putty have similar mechanical workability. The usual tools used for wood or metal work will also serve to saw, drill and sand both these materials. ACRYLIC POLISH PASTE should be used for polishing work. Your sanding work is best done with wet sanding paper in a sequence starting with 150 grit and continuing with 400, 800 and 1200 grit paper. The final polishing should then be done with the above-mentioned ACRYLIC POLISH PASTE and a POLISHING CLOTH.

        This is Modulor
        Modulor Newsletter
        Modulor uses cookies to provide you with the best experience on our website. By continuing to browse the site you are agreeing to our use of cookies.    More information