DENTAL PLASTER

Powder/Water ratio100:60, Expansion on setting 0.28%, Comp’strength 928PSi min

25kg bag - DP025

SURGICAL PLASTER

Powder/Water ratio 100:60, Expansion on setting 0.28%, Comp strength 1000PSi min

25kg bag - SU030

DENTSTONE ‘KD’

Powder/Water ratio 100:30, Expansion on setting 0.23%, Comp strength 2973PSi min

25kg bag - KD035

DENTSTONE ‘HXD’

Powder/Water ratio 100:30, Expansion on setting 0.50%, Comp strength 2973PSi min

25kg bag - HX040

CRYSTACAL ‘D’

Powder/Water ratio 100:25, Expansion on setting 0.23%, Comp strength 6497PSi min

25kg bag - CD045

CRYSTACAL ‘R’

Powder/Water ratio 100:35, Expansion on setting 0.55%, Comp strength 6497PSi min

25kg bag - CR050

ULTRA FINE FLASKING PLASTER

Used for topping

25kg bag - UF055

HERCULITE No2

Powder/Water ratio 100:42, Expansion on setting 0.6%, Comp strength 2000PSi mi

25kg bag - HC060

PRESTIA DENTAL SP

Powder/Water ratio 100:69, Expansion on setting 0.2%, Comp strength 2131PSi min.

25kg bag - PD061

Details of other plasters (generally non dental) are available upon request.

Quantity discounts available

Please note: John Winter and Co. Ltd operate a three bag minimum order quantity on plaster only orders

SHERAPOLAN

Polyurethane based model resin.
This resin is suitable for producing precision models, for the entire precious metal, inlay/onlay and implant technique as well as for reproducing preparations with a shoulder and 3/4 crown preparations. Ideal also for casting thin undercut dies and show models.

1 set consists of: 300g component A, 150g component B, 10 mixing cups, 1 Spatula and 30ml of separator.

1 Kit (Light brown) - 516011
1 Kit (Ivory) - 516010

Other colours available to order

SHERAHARD ROCK

A die stone for precision models suitable for implants, master models, dental arches, single dies and static models. It is ideally suited for CAD/CAM techniques applicable to several systems available on the market. Shera Hard Rock has excellent thixotropic characteristics and flows easily into tooth preparations to give bubble free- and precise models. Shera Hard Rock has excellent tensile strength to facilitate easy removal from the mould without fracturing. At the same time the model can be trimmed, drilled or sawn and is proven to be splinter free.

Availability - 18kgs (packed in 4.5kg sachets) to preserve the shelf life and ease of use.

Pale Yellow - 101025-84
Apple Green - 101025-85
Golden Brown - 101025-18
Grey - 101025-22

SHERAMAXIMUM 2000

Super hard stone for particularly demanding work. For implant work, sectioned, master and static models for crown and bridge, inlay/onlay and chrome techniques. Also suitable for opposing models. The most striking feature is the thixotropic behaviour despite out standing flow characteristics and the clear colours. SHERA MAXIMUM 2000 is easy to process in spite of it’s exceptional hardness.

4 x 4.5kgs (Golden Brown) - 101010-18
4 x 4.5kgs (Lemon) - 101010-34
4 x 4.5kgs (White) - 101010-70

SHERACAM-ROCK

Super hard die stone developed specifically for modern CAD/CAM systems. Thanks to its smooth, dense, matt surface it prevents obstructive reflections and reproduces contours perfectly (without the need for additional paint or powder). Constant and stable expansion after a short removal time are further advantages of this specialist stone.

20kg (Golden Brown) - 101030-18
20kg (Ivory) - 101030-10

SHERAFAVORIT

Acrylic reinforced stone, especially useful for implant techniques and also very well suited for sectioned, static and master models in crown and bridge work. The stone models are easy to remove even with extra hard impression materials. Especially suitable as an acrylic reinforced stone for casting thin and deeply recessed dies.
20kg (Ivory) - 101060-10
20kg (Apricot) - 101060-02
20kg (Golden Brown) - 101060-1

SHERAPREMIUM & PREMIUM-L

Universal super hard stone with excellent cost effectiveness. For sectioned, master and static models for crown and bridge, inlay/onlay and chrome techniques. Also suitable for opposing models. This super hard stone is available in two different working times. Premium has a slightly shortened working time in comparison with SHERAMAXIMUM 2000, whereas Premium-L has a slightly extended working time.
Packed in 20kg boxes.

SHERAAQUA

An alternative cost effective die stone. Super hard, for master models for the chrome technique as well as for sectioned, master and static models for crown and bridge and inlay and onlay techniques. Very suitable for opposing models. Due to it’s reduced hardness (in comparison with SHERAPREMIUM) it is quickly sawn and trimmed without effort.

20kg (Pink) - 101080-50
20kg (Golden Brown) - 101080-18

J-ROCK

Class 4, Peach coloured diestone.
Very cost effective, popular, diestone manufactured exclusively for John Winter and Co. Ltd. Manageable working time of 8-10 minutes, good stacking and trimming properties.

25kg box - JR065

GOLDSTONE

Extra hard class 4 die stone with lower expansion than most of 0.07%. Powder to water ratio is 100:19. Strength is 15000psi

23kg box - GS085

WINSTONE

Class 4, Blue diestone.
Very popular user friendly diestone. Good qualities in all areas. Powder to water ratio of 100:22 gives a compression strength of 12500 psi and an expansion on setting of 0.08%.

23kg box - WS070

MOONSTONE

Class 4, Pale Peach diestone.
Very popular user friendly diestone. Good qualities in all areas. Powder to water ratio of 100:22 gives a compression strength of 12500 psi and an expansion on setting of 0.08%.

23kg box - MS075

CROWNSTONE

Pink diestone with a slightly increased expansion of 0.15%.
Powder to water ratio is 100:24.

25kg drum - CS080

SHERA SOCKEL-FLUSSIG

Liquid super hard stone for basing arches in combination with base formers. When mixing this stone it obtains a very runny, homogenous consistency so that bases can be poured without using vibration. Very dense, bubble free bases are cast easily. Due to the low expansion there is no occurrence of tension in the model. The colour range includes unusually rich colours which allows for a unique presentation of your work.
Packed in 20kg boxes.

SHERAARTI

CLASS 3 ARTICULATING PLASTER.
Very fast setting (2-3 minutes). Very smooth consistency. Low expansion (0.03%) and excellent thixotropic behaviour. Also suitable for orthodontic working models, for side and over bites. Very good adhesive properties.

20kg box - 102040-70

JOHN WINTER IMPRESSION PLASTER

White plaster with powder to water ratio of 100:58. Expansion on setting 0.05% and a compression strength of 3000 psi. Very quick setting.

23kg drums - IM125
5kg tubs - IM130

SHERASTUMPFLACK Die spacer

Serves as a spacer between die and crown whilst simultaneously sealing and hardening the surface of the stone dies. Fast drying and scratch resistant.

Water based, metallic blue, also now available - 962111

VERDUNNER Thinner for die spacers

100ml bottle - 962801

942103	942104

SHERADOWEL PINS

All Shera dowel pins are manufactured to exacting dimensions from high quality brass.
Style 942103 is a plain dowel pin for use with pindex type machines, it measures only 17mm in length, allowing neat, shallow bases to be employed.
Style 942104 is a ‘swordfish’ style pin in so much as it has a spike attached for use directly with impressions, it’s total length including spike is 28.5mm. Both types are packed in boxes of 1000.

942901	942801

SHERAGRADUATED PIN, WITH SLEEVE & DRILL

Graduated brass dowel pin with a plastic sleeve, gives easy model location and a stable hold, dies can be continually removed and replaced without any wear to the base stone. Packed in boxes of 1000.
The drill is of the exact diameter for use with these type of pins and are sold individually.

SHERAGINGIVAL

Produce perfect gingival prosthesis with SHERAGINGIVAL. The silicone of SHERAGINGIVAL has excellent elastic qualities and is very tear resistant however is still easily trimmed. It is supplied in cartridge form with mixing tips and is used in conjunction with an extruder gun (supplied separately) making mixing clean and precise. Cures at room temperature, ready to trim after 20 minutes.

2 x 50ml cartridges with mixing tips - 960101

SHERACRYSTAL

SHERACRYSTAL is a transparent addition cure silicone which is ideally suited for use in conjunction with light curing materials. For example, whenever you need to prepare translucid side and overbites. It is supplied in 1:1 cartridge form with mixing tips and is used in conjunction with an extruder gun (supplied separately) making mixing clean and precise. Cures at room temperature, working time is around 11/2 minutes. After 4 minutes the material sets until reaching a shore hardness of 70.

2 x 50ml cartridges with mixing tips - 960201

EXTRUDER GUN

Suitable for most modern 1:1 cartridge systems, including:- SHERAGINGIVAL, SHERACRYSTAL, VOCO STRUCTUR 2, VOCO UFI GEL (Hard and Soft relinings).

Each - EG504