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Brush-On™ 35

Smooth-On’s Brush-On™ Series of mold rubbers are extremely versatile and are famous for their abrasion resistance and high tear strength. They have the convenience of a one-to-one mix ratio and are easy to mix and apply with a brush or spatula.

Features
Brush-On™ 35 can be painted onto vertical surfaces without sagging and will cure with negligible shrinkage to durable rubbers that perform and last in production.
Brush-On™ 35 will capture exact detail from any original model.
Brush-On™ 35 is the softest of the series and offers the most flexibility and is used for models with deep undercuts.
Brush-On™ 35 can be inverted and used to make glove molds

Technical Bulletin Brush-On series

  • Products
  • Making a hard/flexible composite mold

Brush-On 35

  • Brush-On™ 35 /6 kg

    Brush-On™ 35 /6 kg

    154,77 EUR (Price exclusive 21% VAT)

  • Brush-On™ 35 /34 kg

    Brush-On™ 35 /34 kg

    791,47 EUR (Price exclusive 21% VAT)

Instructions

Preparation - Materials should be stored and used in at room 23°C. Humidity should be low. These products have a limited shelf life and should be used as soon as possible. Wear safety glasses, long sleeves and rubber gloves to minimize contamination risk. Good ventilation (room size) is necessary.

Some Materials Must Be Sealed - To prevent adhesion between the rubber and model surface, models made of porous materials (gypsum plasters, concrete, wood, stone, etc.) must be sealed prior to applying a release agent. SuperSeal™ or One Step™ available from form X are fast drying sealers suitable for sealing porous surfaces without interfering with surface detail. Shellac is suitable for rough contours. A high quality spray shellac is suitable for sealing modeling clays that contain sulfur or moisture (water based). Thermoplastics (polystyrene) must also be sealed with shellac or PVA.

In all cases,
the sealing agent should be applied and allowed to completely dry prior to applying a release agent.

Non-Porous Surfaces - Metal, glass, hard plastics, sulfur free clays, etc. require only a release agent.

Applying A Release Agent - A release agent is necessary to facilitate demolding when casting into or over most surfaces. Use a release agent made specifically for mold making (Universal™ Mold Release available from form x). A liberal coat of release agent should be applied onto all surfaces that will contact the rubber.

IMPORTANT: To ensure thorough coverage, lightly brush the release agent with a soft brush over all surfaces of the model. Follow with a light mist coating and let dry for 30 minutes. Because no two applications are quite the same, a small test application to determine suitability for your project is recommended if performance of this material is in question.

IMPORTANT: Shelf life of product is reduced after opening. Remaining product should be used as soon as possible. Immediately replacing the lids on both containers after dispensing product will help prolong the shelf life of the unused product. XTEND-IT™ Dry Gas Blanket (available from Smooth-On) will significantly prolong the shelf life of unused liquid urethane products.

MEASURING & MIXING - Liquid urethanes are moisture sensitive and will absorb atmospheric moisture. Mixing tools and containers should be clean and made of metal, glass or plastic. Materials should be stored and used in a warm environment 23°C.

Mixing - Part A is a paste with the consistency of cake frosting. Fill a container to the top with this paste, making sure to eliminate any large voids. Level off the top of the container and remove any excess material. The paste should then be thoroughly emptied into a larger container that will act as your mixing container. Next, fill the original container to the top with Part B (liquid) and empty it into the mixing container. After dispensing equal amounts of Parts A and B into mixing container, mix thoroughly for 3 minutes making sure that you scrape the sides and bottom of the mixing container several times.

Applying The Rubber - This product must be applied in layers. Mold makers generally find that four to six layers (minimum 3/8”) thickness is suitable for a working mold. Using a stiff brush, the first coat of rubber should be applied in a thin layer to capture intricate detail. Use dabbing strokes, especially around undercuts, to reduce entrapped air. Subsequent coats will add strength to the mold. Let the first coat dry for 30-40 minutes at room temperature or when it becomes “tacky” before adding the next coat. Repeat until the necessary thickness is achieved. Do not allow rubber to fully cure between layers, as delamination may result. Note: Although not necessary, adding a small amount of SO-Strong™ liquid color pigment available at form X to every other mix of rubber will help you distinguish one layer from the next. This will ensure that you apply a thorough coating each time and help build uniform layers.

Curing - Allow rubber to cure overnight (at least 16 hours) at room temperature 23°C before demolding. Cure time can be reduced with mild heat or by adding Smooth-On “Kick-It™” Cure Accelerator. Do not cure rubber where temperature is less than 18°C.

Post Curing - After rubber has cured at room temperature, heating the rubber to 65°C for 4 to 8 hours will increase physical properties and performance.

Apply A Support Shell - Once the mold is fully cured, a rigid support shell (mother mold) is needed to support the rubber mold during casting. Plasti-Paste™ II is a trowelable plastic which is ideal as a mother mold material.

Using The Mold - If using as a mold material, a release agent should be applied to the mold before each casting. The type of release agent to use depends on the material being cast. The proper release agent for wax, liquid rubber or thermosetting materials (i.e. Smooth-On liquid plastics) is a spray release made specifically for mold making (available from Smooth-On or your distributor). Prior to casting gypsum plaster materials, sponge the mold with a soap solution for better plaster flow and easy release. In & Out™ II Water Based Release Concentrate available from form x is recommended for releasing abrasive materials like concrete.

Performance & Storage - Fully cured molds are tough, durable and will perform if properly used and stored. The physical life of the mold depends on how you use it (materials cast, frequency, etc.). Before storing, the mold should be cleaned with a soap solution and wiped fully dry. Two part (or more) molds should be assembled. Molds should be stored on a level surface in a cool, dry environment. Do not stack molds, expose them to moisture or UV light.

Make a composite flexible/hard mold

Brush-On 35 can verry well be used in combination with Plasti-Paste to create a composite mold with a flexible interior and a hard exterior. Such a mold is made by applying the plasti-Paste over the Brush-On mold without using a release agent. The two urethane materials will now bond together to make one solid composite layer. Such mold are very suitable for large castings in e.g. concrete.

Making a composite mold, BO-35 and Plasti-Paste

  • ++
  • Mixing, Measuring & Weighting
  • Brushes
  • Protective Gear
  • Release Agents

You might also need...

  • Mixing Beakers
  • Measuring Cups & Jars
  • Weighting devices
  • Brushes
  • Protective Gear such as gloves
  • Release agents

Mixing, Measuring & Weighing

Mixing

  • Measuring Cup 30ml

    Measuring cup 30ml + graduation

    0,20 EUR (Price exclusive 21% VAT)

  • Measuring cup 125ml

    Measuring cup 125 ML + Graduation

    0,50 EUR (Price exclusive 21% VAT)

  • mixing / measuring cup 350 ml

    Mixing and measuring beaker with measuring indication - 350 ml

    0,35 EUR (Price exclusive 21% VAT)

  • mixing / measuring cup 700 ml

    Mixing and measuring beaker with measuring indication - 700 ml

    0,45 EUR (Price exclusive 21% VAT)

  • mixing / measuring cup 1400 ml

    Mixing and measuring beaker with measuring indication - 1400 ml

    0,50 EUR (Price exclusive 21% VAT)

  • mixing / measuring cup 2300 ml

    Mixing and measuring beaker with measuring indication - 2300 ml

    0,70 EUR (Price exclusive 21% VAT)

  • SO mixing cup 16oz /473ml

    Mixing and measuringbeaker with measuringindication

    0,67 EUR (Price exclusive 21% VAT)

Mixing

  • SO mixing cup 32oz /946ml

    Mixing and measuring beaker with measuring indication

    0,85 EUR (Price exclusive 21% VAT)

  • SO mixing cup 64oz /1892ml

    Mixing and measuring beaker with measuringinformation

    1,92 EUR (Price exclusive 21% VAT)

  • SO mixing cupr 165oz /4880ml

    Mixing and measuring beaker with measuringinformation

    2,80 EUR (Price exclusive 21% VAT)

  • Mixing beaker round 500cc

    Mixing Beaker, Round, Polypropylene, 500 cc contents

    0,25 EUR (Price exclusive 21% VAT)

  • mixing beaker 1000cc

    plastic mixing beaker 1162 ml. transparant

    0,45 EUR (Price exclusive 21% VAT)

  • Mixing Bowl 2000 ml

    Square mixing Bowl white 180x180 mm; 2000 cc

    0,75 EUR (Price exclusive 21% VAT)

  • Flexible mixing cup 500ml

    Flexible mixing bowl for gypsum, alginate etc. 500 ml

    12,48 EUR (Price exclusive 21% VAT)

Mixing

  • Flexible mixing cup 1750ml

    Flexible mixing bowl for gypsum, alginate etc. 1750 ml

    16,19 EUR (Price exclusive 21% VAT)

  • Syrenge 50ml

    Injection syringe 50 cc with catheter nozzle.

    2,14 EUR (Price exclusive 21% VAT)

  • Tongspatels voor medisch en niet medisch gebruik

    Wooden tongue spatula with rounded ends. For mixing paint, resins, foams and rubbers.

    3,40 EUR (Price exclusive 21% VAT)

  • stirring stick 22cm

    mixing stick small model 220x17x3 mm

    0,10 EUR (Price exclusive 21% VAT)

  • stirring stick 30cm

    strong stirring stick - 30cm / price per piece

    0,20 EUR (Price exclusive 21% VAT)

  • Colad Turbomix /per 200

    Paint stirrers Professional per 200 stirrers in dispenser.

    46,15 EUR (Price exclusive 21% VAT)

  • Turbine Mixer

    Mechanical mixer for use with electrical drill

    13,71 EUR (Price exclusive 21% VAT)

Brushes

  • flat brush 30mm

    flat disposable brushes - 30 mm - per piece

    0,85 EUR (Price exclusive 21% VAT)

  • flat brush 40mm

    flat disposable brushes - 40 mm - per piece

    0,95 EUR (Price exclusive 21% VAT)

  • flat brush 50mm

    flat disposable brushes - 50 mm - per piece

    1,15 EUR (Price exclusive 21% VAT)

  • flat brush 60mm

    flat disposable brushes - 60 mm - per piece

    1,45 EUR (Price exclusive 21% VAT)

  • flat brush 70mm

    flat disposable brushes - 70 mm - per piece

    1,55 EUR (Price exclusive 21% VAT)

  • polyesterkwast 20mm rond, houten steel, ongelakt

    polyester brush 20mm round, wooden handle, unvarnished

    2,55 EUR (Price exclusive 21% VAT)

  • polyesterkwast 25mm rond, houten steel, ongelakt

    polyester brush 25mm round, wooden handle, unvarnished

    2,90 EUR (Price exclusive 21% VAT)

  • houten polyesterkwast 35mm plat

    houten polyesterkwast 35mm plat

    1,83 EUR (Price exclusive 21% VAT)

  • Calupaint flat brush 40mm

    Calupaint flat brush professionel 40 cm.

    2,15 EUR (Price exclusive 21% VAT)

  • kwast plat 40mm, wooden handle, blank

    Brush, flat, 40mm, wooden handle.

    2,35 EUR (Price exclusive 21% VAT)

  • houten polyesterkwast 50mm plat

    wooden polyester brush 50mm flat

    2,86 EUR (Price exclusive 21% VAT)

  • Polyester kwast plat 75mm

    Polyester brush, Flat, 75 mm

    2,75 EUR (Price exclusive 21% VAT)

Protective Gear

  • Glove Vinyl Small /box 100pcs

    Glove Vinyl Small/Box of 100 pcs.

    19,75 EUR (Price exclusive 21% VAT)

  • Glove Vinyl Medium /box 100pcs

    Glove Vinyl Medium/Box of 100 pcs.

    19,75 EUR (Price exclusive 21% VAT)

  • Glove Vinyl Large /box 100pcs

    Glove Vinyl Large/Box of 100 pcs.

    19,75 EUR (Price exclusive 21% VAT)

  • Glove Vinyl X-Large /box 100pcs

    Glove Vinyl X-Large/Box of 100 pcs.

    19,75 EUR (Price exclusive 21% VAT)

  • Nitrile Medical Examination Gloves Small / box 100

    The Supergloves Bluple nitrile disposable glove is made from top quality nitrile. The Bluple nitrile is, despite its smaller thickness (3.2 mil.), Strong and particularly comfortable due to its hig...

    19,75 EUR (Price exclusive 21% VAT)

  • Nitrile Medical Examination Gloves Medium / box 10

    The Supergloves Bluple nitrile disposable glove is made from top quality nitrile. The Bluple nitrile is, despite its smaller thickness (3.2 mil.), Strong and particularly comfortable due to its hig...

    19,75 EUR (Price exclusive 21% VAT)

  • Nitrile Medical Examination Gloves Large / box 100

    The Supergloves Bluple nitrile disposable glove is made from top quality nitrile. The Bluple nitrile is, despite its smaller thickness (3.2 mil.), Strong and particularly comfortable due to its hig...

    19,75 EUR (Price exclusive 21% VAT)

  • Nitrile Medical Examination Gloves Extra Large / b

    The Supergloves Bluple nitrile disposable glove is made from top quality nitrile. The Bluple nitrile is, despite its smaller thickness (3.2 mil.), Strong and particularly comfortable due to its hig...

    19,75 EUR (Price exclusive 21% VAT)

  • Paint spray mask - type 6200 - S

    Comfortable and easy to wear paint spray mask. Complies with EN 140, 141 and 143. Supplied without filters. Size S

    31,07 EUR (Price exclusive 21% VAT)

  • Paint spray mask - type 6200 - M

    Comfortable and easy to wear paint spray mask. Complies with EN 140, 141 and 143. Supplied without filters. Size M

    29,95 EUR (Price exclusive 21% VAT)

  • Paint spray mask - type 6200 - L

    Comfortable and easy to wear paint spray mask. Complies with EN 140, 141 and 143. Supplied without filters. Size L

    29,95 EUR (Price exclusive 21% VAT)

  • Stenchmask carbon fibre

    Stenchmask carbon fibre

    5,60 EUR (Price exclusive 21% VAT)

  • Paint spray mask Colad

    Complet easy to wear paint spray mask. Supplied with filters.

    29,25 EUR (Price exclusive 21% VAT)

  • Gas and Vapormask Carbonfilters 3M

    Gas and Vapormask, Carbonfilters, 3M 4251

    45,55 EUR (Price exclusive 21% VAT)

  • Filter ABEK1 for 3M 6200 maskers

    Protection against organic vapors, Inorganic and acid gases, Ammonia, and ammonia derivatives of

    19,45 EUR (Price exclusive 21% VAT)

  • 3M safety glasses Classic

    3M safety glasses Classic

    12,55 EUR (Price exclusive 21% VAT)

  • 3M 06941 Halfgelaatmasker FFA1P2D

    3m Organic Vapour Respirator plus free overspray guard / cover sleeve for extra life.

    63,45 EUR (Price exclusive 21% VAT)

Release Agents

Spray Releases

  • Acmos 82 aerosol /400gr

    Removable universal release agent/ wax based / aerosol spraycan

    12,32 EUR (Price exclusive 21% VAT)

  • Ease Release™ 200 /340 gr

    Ease Release™ 200 /340 gr

    16,86 EUR (Price exclusive 21% VAT)

  • Ease Release™ 300 /340 gr

    Ease Release™ 300 /340 gr

    16,86 EUR (Price exclusive 21% VAT)

  • Ease Release™ 400 /340 gr

    Ease Release™ 400 /340 gr

    15,75 EUR (Price exclusive 21% VAT)

  • Ease Release™ 500 /340 gr

    Ease Release™ 500 /340 gr

    15,80 EUR (Price exclusive 21% VAT)

  • Universal™ Mold Release /400 gr

    Universal™ Mold Release /400 gr

    15,04 EUR (Price exclusive 21% VAT)

  • Kwikee™ Sprayer - 946 ml Pressure Sprayer

    Kwikee™ Sprayer - 946 ml Pressure Sprayer

    126,45 EUR (Price exclusive 21% VAT)

Paste Releases

  • PVA /500ml

    (Poly Vinyl Alcohol) Release agent for polyester - 500ml can

    6,80 EUR (Price exclusive 21% VAT)

  • PVA /1ltr

    (Poly Vinyl Alcohol) Release agent for polyester - 1 liter can.

    10,80 EUR (Price exclusive 21% VAT)

  • Sonite Wax /3 kg

    Sonite Wax universal release agent wax /3 kg

    53,90 EUR (Price exclusive 21% VAT)

  • Universal™ Mold Release /100 ml

    Universal™ Mold Release /100 ml

    5,63 EUR (Price exclusive 21% VAT)

  • Vaseline /250gr

    petroleum jelly.

    3,40 EUR (Price exclusive 21% VAT)

  • Vaseline /1kg

    petroleum jelly.

    10,05 EUR (Price exclusive 21% VAT)

Sealers

  • SuperSeal™ /500 ml

    SuperSeal™ /500 ml

    25,14 EUR (Price exclusive 21% VAT)

  • SuperSeal™ Kit

    SuperSeal™ Kit

    12,01 EUR (Price exclusive 21% VAT)

  • SuperSeal™ /3,7 lt

    SuperSeal™ /3,7 lt

    53,69 EUR (Price exclusive 21% VAT)

Guide

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    resins and other materials used for rapid prototyping.

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