REZINA.UZ Blog
Articles by topic: materials, production, import substitution and industries
Materials
NBR, EPDM, Viton, silicone — selection and comparison
EPDM seals: where they belong and where they do not
EPDM is recommended for water, outdoors and steam; oil needs another grade. We cover the section, hardness and joint.
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Viton and fluoroelastomer: when FKM is the right grade
Viton and FKM are one material family. Selection follows the medium and temperature, not the colour of the part.
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Food-grade silicone: gaskets, lids, fillers
Food-grade silicone is recommended for product contact. Wash steam without product contact is often an EPDM application.
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Rubber sheet: thickness and cutting
Oil and water require different sheet grades. Thickness and cutting pattern are set before work starts.
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Rubber Cords: Cross-Section, Hardness and Where They Are Used
How a cord differs from a moulded seal and how to get diameter and the joint right.
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Temperature and Medium: How to Choose a Rubber Grade
A single working logic for compound choice by medium and temperature.
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Silicone Rubber: Where to Use It and When NBR Is Better
Strengths of silicone and cases where classic NBR wins.
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MBS and TMKSh Rubber Sheets: Differences and Uses
When sheet rubber beats molding for gaskets.
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Rubber Hardness Shore A: What 40, 70 and 90 Mean
A plain-language guide to Shore A for RTI.
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Polyurethane or Rubber: Bushings and Rollers
When to upgrade from rubber to polyurethane.
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Types of Rubber for Industry: NBR, EPDM, Viton, Silicone
We analyze the main rubber grades, their properties and applications in industrial equipment.
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NBR, EPDM or Viton: Which Material to Choose for Sealing
Detailed comparison of three most popular sealing rubber materials with compatibility table.
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Rubber Products for Food Industry: Requirements and Materials
Materials and standards for rubber products in food enterprises: from dairies to breweries.
ReadOrdering & production
Drawings, molds, measurements, lead times
Oil seal size: what the three numbers mean
An oil-seal size has three numbers. Here is which one belongs to the shaft, housing bore and width.
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Rubber gaskets: cut from sheet or molded
A one-off gasket is usually cut from sheet; a series of identical parts calls for a mold.
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Which rubber parts we make — and which we do not
The range includes seals and small molded parts. Rubber bladders and large parts are not manufactured.
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O-rings: groove, section and tolerance
An O-ring needs its inside diameter, cord section and groove dimensions — not an approximate old sample.
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Why a Seal Leaks: Seven Typical Causes
Typical leak causes on pumps, cylinders and gearboxes — and what an engineer needs to quote a replacement.
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Oil Seals: How to Select by Shaft, Speed and Medium
A practical selection method that does not rely on guessing the nearest catalogue size.
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Rubber Bushings: Rubber, Polyurethane or Rubber-Metal
How to choose a bushing type for impact, vibration and abrasion.
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Rod and Piston Cuffs: Differences and What to Send for a Quote
How rod seals differ from piston seals and which data prevent a wrong profile.
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Drawing, Sample or Photo with a Scale: What Is Enough to Order Rubber Parts
Which inputs production accepts — and when a physical sample is mandatory.
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How Much Does Custom Rubber Manufacturing Cost in Tashkent — 2026
What makes up the price of custom rubber parts and how to avoid overpaying.
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How to Choose an O-Ring: Size, Cross-Section, Material
A practical checklist for picking the right sealing ring.
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Rubber Part Lead Times: 3–5 Business Days and New Molds
Realistic manufacturing timelines in Tashkent — not one number for every order.
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How to Order Custom Rubber Products: Step-by-Step Guide
Detailed instructions on how to order custom rubber products by your drawing.
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Molds for Rubber Products: Our Manufacturing Process
How we manufacture molds for rubber products — from 3D model to first molded product.
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How to Properly Measure Rubber Products for Ordering
Step-by-step instructions on measuring worn products or seats for accurate ordering.
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What is a Rubber Mold and Why You Need One
Simple explanation of rubber molds: what they are, why needed, cost and payback.
ReadImport substitution
Replacing imports with local production
Oil & Gas Rubber Parts in Uzbekistan: Materials and Localization
Which seals oil & gas sites need and how to replace imports.
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Import Substitution of Rubber Products in Uzbekistan
How Uzbekistan enterprises switch to local rubber products: savings, quality and delivery speed.
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Rubber Product Import Substitution: Real Cases from Practice
Concrete examples of how Uzbekistan enterprises save by switching to local rubber products.
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Replacing Imported Rubber Products: Finding Analogs Without Quality Loss
Practical experience replacing Parker, Freudenberg, Trelleborg seals with locally manufactured analogs.
ReadStorage & service life
How to store rubber parts and extend life
By industry
Pumps, automotive, food industry
Hydraulic wiper seals: why the cuff needs one
A wiper strips sand from the rod before it reaches the pressure seal. We cover when a polyurethane lip is needed.
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Pump and gearbox oil seals
A pump or gearbox seal needs shaft size, housing bore, medium and speed.
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Rubber Parts for Mining: Abrasion, Dust and Impact
Which parts fail first on excavators and conveyors — and what is worth making locally.
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Seals for Power Plants, Pump Stations and Steam Lines
How a steam-line gasket differs from a station oil-pump seal — and which grades must not be mixed.
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Rubber Parts for Construction and Utilities: Water, Heat, Valves
Which rubber parts contractors and operators actually need — not car-spare lookalikes.
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Hydraulic Seals: Rod, Piston and Wiper Types
How to select seals for hydraulic cylinders.
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Flange Gaskets: Material, Thickness, Cutting
How to order a flange gasket without picking the wrong compound.
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How to Choose a Pump Seal: Step-by-Step Guide
Step-by-step breakdown of how to select seals for centrifugal, gear, and diaphragm pumps.
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Rubber Parts for Cars: What Can Be Custom-Made
Overview of automotive rubber parts that can be ordered by sample or part number.
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