KW Investments Logo
KW INVESTMENT GROUP Mining • Trading • Services
KW Investments Logo
KW INVESTMENT GROUP Mining • Trading • Services
Region Dar Es Salaam, District Ilala CBD, Ward Kisutu

info@kwinvestments.ltd

Raw Materials Digital Catalogue

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Raw Materials Substrates
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Industrial Metals & Sourcing Division

Raw Materials
& Substrates

Essential steel/aluminum substrates, coating systems, surface treatments, pre-treatment chemicals, and industrial adhesives for continuous metal processing.

Document Technical Sourcing Portfolio
Origin Dar Es Salaam, TZ
Classification Industrial / Trade Sourcing
KW Investments Group

Metal Substrates & Processing

KW Investments Group coordinates the supply chain of primary raw materials and substrates for the steel and aluminum coating industry. From base hot-rolled and cold-rolled coils to specialized alloys and chemical treatments, we provide integrated material solutions.

We work with internationally certified mills to supply substrates that meet strict specifications for thickness control, mechanical properties, and surface roughness required for high-speed continuous painting (PPGI/PPGL) and galvanizing lines.

Quality Standards

  • • Compliance with ASTM, EN, and JIS standards.
  • • Certified Special High Grade Zinc (99.995%).
  • • Strict coil coating paint performance criteria.
  • • ISO 9001 quality management across sourcing partners.

Contents

01. Sourcing Capabilities02
02. Steel Substrates (HRC & CRC)03
03. Alloys (Zinc & Galvalume)04
04. Coating Systems & Resins05
05. Pre-treatment & Cleaning Chemicals06
06. Technical Sourcing Standards Annex07
07. Global Supply Network08
Steel Coil Factory
KW Investments Group

Hot Rolled Steel Coils (HRC)

Hot Rolled Steel Coils (HRC)

Premium-grade Hot Rolled Steel Coils (HRC) suitable for structural applications, pipe manufacturing, and subsequent cold rolling. Our coils feature excellent weldability and surface consistency.

Parameter Specification
Specs/Size 1.2mm - 20.0mm
Grades Available S235JR, S275JR, S355JR
Standard EN 10025 / ASTM A1011
Origin Certified Global Mills

Cold Rolled Steel Coils & Plates (CRC)

Cold Rolled Steel Coils & Plates (CRC)

High-precision Cold Rolled Steel Coils & Plates (CRC) providing tight thickness tolerances, exceptional flatness, and a smooth, clean finish ideal for painting, coating, and press-forming.

Parameter Specification
Specs/Size 0.3mm - 3.0mm
Grades Available DC01, DC03, DC04
Standard EN 10130 / ASTM A1008
Origin Certified Global Mills
KW Investments Group

Zinc & Zinc Alloy

Zinc & Zinc Alloy

Special High Grade (SHG) Zinc blocks and alloy formulations engineered specifically for high-efficiency hot-dip galvanizing, continuous zinc plating lines, and die-casting components.

Parameter Specification
Specs/Size 99.995% Pure Zinc
Grades Available SHG Grade
Standard EN 1179 / ASTM B6
Origin Certified Global Mills

Aluminum-Zinc Alloy (GALVALUME / PPGL BASE)

Aluminum-Zinc Alloy (GALVALUME / PPGL BASE)

55% Aluminum-Zinc alloy coated steel sheet substrate providing a dual barrier and galvanic protection. Ideal for use in premium prepainted galvalume (PPGL) coating processes.

Parameter Specification
Specs/Size 55% Al, 43.4% Zn, 1.6% Si
Grades Available SGLCC, SGLCH
Standard EN 10346 / ASTM A792
Origin Certified Global Mills
KW Investments Group

Paint & Coating Systems (PPGI / PPGL)

Paint & Coating Systems (PPGI / PPGL)

Premium prepainted galvanized (PPGI) and prepainted galvalume (PPGL) coil paint coatings designed for outstanding color retention, flexibility, and resistance to harsh weather conditions.

Parameter Specification
Specs/Size Top: 15-25µm, Back: 5-10µm
Grades Available Polyester (PE), PVDF, SMP
Standard EN 10169 / ASTM A755
Origin Certified Global Mills

Paints & Coating Chemicals

Paints & Coating Chemicals

Industrial formulations including polyesters, polyurethanes, primers, backing coats, and additives specifically optimized for high-speed continuous metal coil coating lines.

Parameter Specification
Specs/Size Solvent & Water-borne Resins
Grades Available Polyester, Acrylic, Epoxy
Standard Industrial Grade
Origin Certified Global Mills
KW Investments Group

Surface Treatment & Cleaning Chemicals

Surface Treatment & Cleaning Chemicals

Cleaners, degreasers, phosphate conversion coatings, and chrome-free passivators formulated to optimize surface preparation of steel and aluminum substrates before paint application.

Parameter Specification
Specs/Size Degreasers & Passivators
Grades Available Spray / Immersion / Roll-coat
Standard ISO 9001 Compliant
Origin Certified Global Mills

Sealants & Adhesives

Sealants & Adhesives

High-performance polyurethanes, silicones, and MS polymers engineered for structural bonding, joint sealing, and weatherproofing in steel building and aluminum composite panel systems.

Parameter Specification
Specs/Size Polyurethane & Silicone
Grades Available Elongation: 200% - 600%
Standard ISO 11600 / ASTM C920
Origin Certified Global Mills
KW Investments Group

Core Substrates & Coating Standards

Product Substrate / Type Available Grades Standards
Hot Rolled Coils Steel Substrate S235JR / S275JR / S355JR EN 10025 / ASTM A1011
Cold Rolled Coils Steel Substrate DC01 / DC03 / DC04 EN 10130 / ASTM A1008
Zinc Alloy Special High Grade Zinc SHG Grade (99.995%) EN 1179 / ASTM B6
Al-Zn Galvalume Aluminum-Zinc Substrate SGLCC / SGLCH EN 10346 / ASTM A792
Coating Systems Prepainted PPGI/PPGL PE / PVDF / SMP EN 10169 / ASTM A755