Peel Strength Tester

Peel Strength tester
This instrument is developed for the packaging industries. This instrument is used for testing adhesive tapes ,gums etc..The strength require to separate one fix member from the other moving over the adhered surface. The machine is designed to pull the adhesive strip over the steel strip or any other rigid strip at a constant speed without jerks. The direction of the pulling force is kept at 90 degree to separate adhesive strip. The required load is directly indicated by digital display in grams. The maximum load locking arrangement is provided to the display. Top grip is provided to hold steel strip, as well as flexible strip over which adhesive strip is pasted. The bottom grip is provided to hold adhesive flexible strip which pull by way of motorize rotating mechanism at constant speed.

Abrasion tester

Abrasion Tester
Coated surfaces need to be tested for resistance to abrasion caused by a brush, sponge, emry prapare, or other means.
LAB-FINE Instrument is manufacturing following instruments for abrasion testing

1) Scrub Tester: This tester can examine wash ability and related properties by scrubbing method.
· Features:
· Single or double brush holder
· Fluid pump
· Digital stock counter
· Table top model
2 ) Friction Wheel Abrasion Tester
A friction wheel mounted abrasive strip with specific dimensions and known weight is travel to and fro, in a straight line across the surface to be tested.
Features
· The rubbing area of the abrasive is constantly replaced by turning the wheel.
· Preen-set digital counter is mounted to control the No. Of strokes of the wheel.
· Low speed is maintained to avoided heat generated by friction
· Tabletop model.
3) Abrasion tester for Road marking paint.The painted film of the material on a standard surface is subjected to traction of rubber tyred wheels with specified load and for specific

Film applicator

FILM APPLICATORS

LAB-FINE Instrument is manufacturing following types of film applicator
1) Bar Applicator
This applicator is used as single side film applicater. The standard length is 90 mm and film thickness is 25, 50, 75 and 100 microns. Any other size will be manufactured on request.
2) Adjustable film applicator
Width of the film is 60 mm and thickness can be adjusted from 25 micro. To3 mm
3) Multi film applicator
This will draw down 8 different film thicknesses of 25,50,75,100,125.150.175 and 200 microns having width of 60 mm.
4) 4 Sided film applicator
This is a squire bar film applicator having 4 different film thicknesses of 30,60,90 and 120 microns.
5) Sag index applicator
This film applicator is used to determine the level of wet film thickness at which a paint film will run down or sag. There are seven steps having 50, 75,100,125,150,175 and 200 microns thickness.
6) Automatic film applicator
This is a motorized film applicator having full control over speed and pressure on
Film applicator. It overcomes of humane error.

The quality of the draw down is depending on the shear rate and the weight on the applicator. To overcome the manually operated film applicator caused by variations in speed and pressure, Lab-fine instruments has developed automatic film applicator.The design is confirmed to standard ASTM D823.Specification: Travel speed: -fixed or variableStroke length: -250mm.Test panel size: -250mm*200mmPower supply: -230v, single phase.Dimensions: -W300mm*L550mm*H180mm.Weight: -15 kg.

Zahn cup viscometer

Zahn Cup Viscometer
Viscosity cup holds a standard volume of liquid, which flows through an orifice provided at the bottom. Lab-Fine controls the mechanical dimensions, which is very-very close to perfection on which volume is controlled
Instrument: - These cups are made from stainless having long handle .The orifice is provided at the bottom having hemi-spherical shape. Very precision orifices are drilled as per the standard specification, which are numbered from no-1 to no-5.

Salt spray corrosion chamber

SALT SPRAY CHAMBER
This chamber is design to test coated m.s. Panel in the specific salty atmosphere where salty fog is created by making artificial solution or direct seawater is used. This chamber is manufactured with the consideration of various factors.
1) No. Of panels.
2) Size of test product.
3) Heating facility.
4) Material to be use for construction.

Laboratory ball mill

LABORATORY BALL MILL
This is same as a production ball mill with the smaller capacity from 1 Kg. To 5 Kg. It has got s.s. Drum and balls for grinding. It rotate at 80 r.p.m.It is a tabletop model. It is used in laboratory for preparation sample batch for R & D.

Pencil hardness tester

. PENCIL HARDNESS TESTER
Pencils of various grades of hardness are moved over the coated film on metallic sheet at a specific angle and pressure. The test to be carried out in accordance with Wolff-Wilborn. The degree of hardness of the pencil, which damages the coating, is taken as a measurement of scratch hardness. Pencils having hardness grade from 6B to 9H are
Used.

Tubular impact tester

TUBULAR IMPACT TESTER
This test also called as “ Falling Weight Test.“ This test is used for evaluating impact resistance of a coating to cracking and peeling from a substrate when it is subjected to a deformation caused by a falling weight.
LAB-FINE Instruments is manufacturing this instrument as per DIN and ASTM
Standard specifications.

Flow cup viscometer

FLOW CUP VISCOMETER


Viscosity cup hold a standard volume of liquid, which flows through an apparatus at bottom. Lab-fine Instruments controls the mechanical dimensions to the very-very close to the perfection on which volume of liquid is controlled. These cups are made from gun metal, stainless steel. The results are expressed in time in seconds for the liquid to flow through the orifice until the first break in the liquid stream observe

Fineness of Drinding Gauge

Fineness Of Grind Gauge
Fineness of grind gauge is used to indicate the fineness of grind or the presence of coarse partials in a depression. It is a flat corrosion resistant stainless steel block. There are two flat-bottomed taper grooves varying uniform in depth from a maximum at one end of the block to zero near the other end. Groove depth is graduated on the block according to one or more scales used for measuring partial size. The degree of depression is indicated in microns or Hegman scale.
Models: -
*0-100 microns = 8-0Hegman.
*0-50 microns =8-4Hegman.
*0-25 microns =8-6Hegman.

Drying time measuring instrument

Drying Time Measuring Instruments
Scope: - this instrument is designed for measuring the drying time of coating, which applied on paper or metallic panel.
Principal: -A ballpoint is travel on the wet film at a const speed. This speed is proportional to time piece (watch) mechanism. This ballpoint leaves the traveling path on the film. When the coating film start drying it become harder slowly. At this junction the ball get lifted above the dry film and shows the rubbing path on film. After completion of one circle of ballpoint observed the ballpoint path. Mark the starting point and the point of rubbing action, which indicate the drying point.
Least Count: - The least count will be different for every model.
(1) For example: -A model having 12 minutes one revolution.
Least count: -1 division (natural 1 min) mark on gauge =12 second.
(2) For a model having 6 hours one revolution
Least count: -1 division (natural 1 min) mark gauge = 6 min

Density cup

DENSITY CUP
Density cup is machined from corrosion resistant stainless steel material. Cover having an upward taper with small hole at center to ensure that no air bubbles are trap in the cavity. Lab-fine Instruments offers two models i.e. 50cc and 100cc.

Cross cut tester

CROSS-CUT (HATCH) CUTER
This test is widely used in various forms to assess adhesion of coated film on metallic sheet. This cutter is very simple to use.
LAB-FINE is manufacturing these cutters with 1,2 and 3mm spaces between cutting edges. The template is available with single point blade

Cupping Tester

CUPPNG TESTER
This test method supplies information on adhesion properties. This test is used for evaluating the resistance of a coating to cracking and detachment from a metal substrate when it is subjected to a gradual deformation.
LAB-FINE Instrument is manufacturing following models.
1) Automatic cupping tester
There are several drawbacks in hand-operated machine. To overcome these drawbacks LAB-FINE has developed automatic Erichsen Cupping testing machine. A coated metallic sheet is clamped and ballpoint is press. As the test panel is deformed the coated surface is kept under observation and the point at which cracks or detached from the substrate is noted.
Specifications:
· Punch: Spherical diameter of 20 mm
· Sheet holder: diameter 33 mm
· Die: diameter 27 mm
· Dimensions: 450 x 450 x 550 height
· Motor: I PH. 230 V.
· Weight: About 25 Kg.

Scratch hardness tester

Scratch Hardness Tester

This machine is used for determination and measuring the resistance offered by the coated film on metallic sheet by scratching standard specific hard ball point needle.
The design is complies with: -BS3900 PART E.
Silence Features: -
*The full tungsten carbide material is used for needle hence no ballpoint peels off from shank.
*Panel mounting platform is free from dent and screw head depression, which causes for damage to the needle.
*The film penetration is indicated by light and bouzer so that operator can fully concentric on actual scratch operation rather than voltmeter needle deflection.
Result: - The report is presented I two ways.
(a) A minimum weight is fixed before the test and test is carried only to test pass or fail to that particular wt.
(b) The report is presented at which minimum weight the film get peeled off.

Laboratory Testing Instruments