JOHN WINTER
FOUNDRY SANDS & POWDER ADDITIVES
FOR MOULDS AND CORES FOR ANY ALLOY
Anti veining additives from a UK manufacturer, Halifax UK
John Winter AF182 is a class leading antifin for automotive coldbox cores to stop finning defects.
Anti veining additives from a UK manufacturer, Halifax UK
Anti-veining additives, chromite sand, bentonite, coal dust and more...
The warehouse in Halifax stocks an extensive range of foundry powder additives for sand cores and moulds but also various grades of silica sand through to specialist sands like chromite, zircon and cerabeads.
One of John Winters most successful products are the range of Oil Bonded Moulding Sands. Petrobond, Mansbond and Bentomix are synonymous with the John Winter brand.
A range of Anti Veining Additives are also manufactured in Halifax predominantly for coldbox core production but can be added to any moulding sand where finning /veining is an issue.
Anti Veining Additive for Coldbox Cores
Antifin Additives
Stop Finning in it's Tracks
Reduce Dressing Times
Improve Surface Finning
AF2M Anti Veining
AF2 MG Anti Veining
Veining Additive
AF2M / AF2MG
Organic Antifin
AF2M is John Winters leading anti veining powder additive. It is very effective even at low levels in preventing fins in castings. Finning or 'veining' can be a severe problem inside castings, hard to reach and hard to remove. AF2M is a class leading product sold globally.
Has technological benefits for both ferrous and non ferrous core production.
Sands for Foundry Moulds and Cores
Use the right sand to prevent casting defects
Chill Castings
Facing Sands for Exceptional Surface Finish
Prevent Finning and more.
Moulding Sand
Silica Sand
50 AFS to Fine 95AFS
A range of silica sands are available in 25kg bags to 1 ton bags and even 25 ton bulk delivery. Silica sands come in various grades from 50AFS to 95AFS. The higher the number the better the surface finish on castings but there is a trade off with lower permeability and higher resin demand.
Moulding Sand
Chromite Sand
Chill Sand
Chromite Sand is a high density, highly resistant grade of sand for the most demanding core and mould applications. It can be used for all metal grades especially when there's a need to aid cooling and prevent metal penetration.
Available in 25kg bags or 1 tonne bulk bags.
Moulding Sand
Zircon Sand
50 AFS to Fine 95AFS
Zircon Sand is available in 25kg bags for making cores. Zircon is ideal for making cores that need high strength and high resistance to metal penetration in high temperature alloys.
Moulding Sand
DM Red Sand
High Clay Quarry Sand
DM Red Sand is a raw quarry sand that has residual, natural clay content so its ideal to be milled into greensand. The natural clays will help generate green strengths but will still need additional Hybond clay to develop strengths further.
Oil Bonded Moulding Sand
Milled, Oil Sands for Greensand Moulding
Use Straight out the Bag
Superior Surface Finish
Can be used on Multiple Metal Types
Oil Bonded Sand
Bentomix Standard
Excellent Surface Finish
Bentomix Standard is a very high quality moulding sand for greensand moulding. Ideal for castings that require excellent surface finish.
Oil Bonded Sand
Bentomix Extra Oil
High Strength
Bentomix Extra Oil is particularly useful for patterns with deeper pockets or tricky areas that will not strip very well in Bentomix Standard. It's a general purpose, high quality, oil-bonded moulding sand for multiple types of metals.
Oil Bonded Sand
Bentomix WG
All round use
Bentomix WG is an oil-bonded sand specifically designed for colder weather. It's formulated to be free-flowing in Winter when temperatures are typically below 10C.
Made to order.
Greensand Additives
Coal Dust and a Range of Bentonites & Conditioners
Use Straight out the Bag
Superior Surface Finish
Can be used on Multiple Metal Types
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Greensand Additives
Coal Dust
Prevents sand fusion
Coal Dust is an integral part of greensand moulding. It helps to prevent sand fusion and improves surface finish in iron castings. Used extensively in greensand iron foundries.
Greensand Additive
Hybond 130
Bentonite Blend
Hybond is a blend of bentonite clay powders for greensand foundries that want the benefits of potassium and sodium bentonite. Produces excellent 'green strengths' and good quality moulds and castings.
Greensand Additive
SC1 and SC2
Sand Conditioner
SC1 and SC2 are blends of various starches. When added to Greensand it produces improved strengths and toughness.
Core Repair, Oils and Starches
A Range of products for high strength, traditionally made cores
Traditional Core Making Oils and Starches
Oven Dried Cores offer excellent strength & breakdown.
Excellent for rapid core production of simple shapes.
Core Repair
Core Putty
Repair Putty for Sand Cores and Moulds
A soft pliable putty for repairing small areas on cores and sealing joints on core assemblies to prevent metal penetration and seal gases in.
Oil Bonded Cores
C3 Core Oil
Oven Dried Cores
C3 Core Oil is mixed with Risofarin Starch to produce a traditional oil binder for the production of cores that are then oven baked. The cores have high strength and excellent breakdown properties
Oil Bonded Cores
Risofarin Starch
Core Strengthener
Risofarin is a premium grade of starch ideal for strengthening core sand. Produces high strength cores with excellent breakdown. Can be added to Core Grease to further strengthen the mix.
Oil Bonded Cores
Corovit Oil & Dryer
Core Oil
Corovit Oil is pre-blended with Corovit Dryers to the specified ratio and then added to silica sand and mixed in a batch mill to produce oil bonded sand cores which are then fired in an oven. The Corovit Dryer produces a core that is semi-set. Once baked, cores have high strength and excellent breakdown.