Natural Perlite – PEPN Series

Classified natural perlite feed grades from Türkiye for industrial expansion plants.

The current PEPN product range comprises six classified natural perlite feed grades for use in thermal expansion plants. The individual grades differ mainly in their particle-size distribution. Other particle-size grades are available on request. Natural perlite is a volcanic glass whose bound water enables expansion during controlled heating.

Key characteristics

Six defined feed grades from 0.074 to 2.80 mm
Free moisture: max. 1 wt%
SiO₂: 71.32% · Al₂O₃: 13.25% · Fe₂O₃: 0.82%
Na₂O + K₂O: 8.70%
pH: 6.6–8.0 (10% slurry)
Raw material colour: gray
Bulk or Big Bag supply by agreement

Grade and size profile

Grade	Nominal size
PEPN030074	0.074–0.30 mm
PEPN060015	0.15–0.60 mm
PEPN060030	0.30–0.60 mm
PEPN12060	0.60–1.20 mm
PEPN2412	1.20–2.40 mm
PEPN2812	1.20–2.80 mm

Typical chemical composition

Component	Typical value
SiO₂	71.32%
Al₂O₃	13.25%
Fe₂O₃	0.82%
TiO₂	0.16%
CaO	0.57%
MgO	0.14%
Na₂O	4.24%
K₂O	4.46%
P₂O₅	0.01%
LOI	4.82%

Potential applications

Raw feed for perlite expansion plants
Feed for expanded perlite used in construction materials, insulation systems and lightweight aggregates
Feed for horticultural expanded perlite and growing media
Feed for industrial and filtration grades after expansion and classification

Technical evaluation and supply

The PEPN grade must match the furnace, target bulk density, final particle size and acceptable fines level. The material should therefore be tested on the intended production line.

Closed-cell expansion often requires very narrowly defined feed fractions. Tolerances can be considerably tighter than in conventional perlite production. Even small amounts of fines or oversized particles can affect expansion, product consistency and yield. This applies whether the furnace is electrically heated or gas-fired.

Supply form: bulk or Big Bags by agreement. The delivered grade can be checked by representative sampling and the agreed technical tests. Origin: Türkiye.

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Yinovia Minerals: Independent Industrial Mineral Supplier for Europe, the Middle East and Asia

Yinovia Minerals is a Hamburg-based independent trading and supply company specialising in industrial minerals and ores. We work directly with selected producers, primarily in Türkiye, and connect them with industrial customers across Europe, the Middle East and Asia through workable, commercially realistic supply routes.

Our portfolio covers bauxite, barite, bentonite, feldspar and feldspathic raw materials, amorphous silica, volcanic pozzolan, pumice and lava stone, serving the ceramics, glass, construction, cement and concrete industries. Every sourcing process is supported by representative sampling, technical documentation and multilingual communication.

Our Product Portfolio

Natural Bauxite – AG Series

Classified natural bauxite grades (AG-46, AG-52, AG-54) from Muğla, Türkiye, crushed, screened and sorted into three commercial size ranges with distinct Al₂O₃, SiO₂, Fe₂O₃ and loss-on-ignition profiles. Used as feedstock for aluminium-related processing, refractory and high-alumina formulations, and cement and mineral blends, subject to grade and process evaluation. Supplied in bulk or Big Bags, typically FOB Güllük or İzmir.

Barite (BaSO₄) – High-Purity Barium Sulphate

Natural barite offering strong density (4.2–4.4 g/cm³) and chemical inertness, relevant for oil & gas drilling fluid weighting, paints, plastics and radiation-shielding concrete. Available at 90–98% BaSO₄ purity in Drilling, Micronised and High-Purity White grades, shipped from Mersin and İskenderun.

BT-1 White Bentonite

A natural white Turkish bentonite with high montmorillonite content, offering strong binding, plasticity and rheological properties for ceramic formulations where processing behaviour, green strength, suspension stability and fired colour matter together. Available in bulk or milled form, in big bags or containers.

Feldspar & Feldspathic Raw Materials

Two distinct natural product lines: the Na-K Series (sodium-dominant Na-K feldspar grades Na-K1 and Na-K2) used as feldspathic fluxes in ceramic formulations, and the YF-M Series (three natural, non-flotated feldspathic mix raw materials YF-M1 to YF-M3) for ceramic body development. These lines differ in chemistry, mineralogy and firing behaviour and are evaluated separately, not as one uniform product.

Volcanic Pozzolan

A natural volcanic pozzolan used as a supplementary cementitious material in low-carbon cement and concrete blends, contributing to durability and reduced clinker content where confirmed suitable for the intended mix design.

Pumice – Natural Volcanic Raw Material from Central Anatolia

Lightweight pumice with a dry bulk density of 380–600 kg/m³ and low thermal conductivity (0.12–0.18 W/mK), used as lightweight concrete aggregate, in road construction and thermal insulation, as a growing substrate in horticulture, and as a filter medium. Bulk shipments from İskenderun and Yumurtalık.

Lava Stone

Natural volcanic lava stone supplied for construction, landscaping and filtration applications, with size and grading confirmed per order and shipment.

Our Product Groups

Specialty Minerals & Ores

Bauxite, barite, bentonite and other specialty minerals and ores sourced and qualified for industrial applications through representative sampling and technical evaluation before larger volumes are discussed.

Ceramics & Glass Raw Materials

Feldspar and feldspathic mix raw materials, amorphous silica and bentonite for tile, porcelain, glassware and technical ceramics, with mineralogy, firing behaviour and colour confirmed in the customer’s own body before commercial approval.

Construction, Cement & Concrete Materials

Pumice, volcanic pozzolan, lava stone and amorphous silica for lightweight concrete, low-carbon cement blends and specialty concrete admixtures, evaluated against the intended mix design and applicable construction standards.

Why Yinovia

Direct source access

Selected producer relationships and first-hand knowledge of the material and source.

Technical qualification

Representative samples, independent laboratory analysis and product-specific documentation where required.

Commercial reality

Quality is evaluated together with available volume, processing requirements and logistics.

Fast communication

Direct and multilingual communication without unnecessary organisational layers.

Contact and Shipping Information

Yinovia Minerals is located at Saseler Damm 46 a, D-22395 Hamburg. For supply enquiries, sample requests and technical consultations, please call +49-(040) 64208398 or contact us via the website. Primary shipping ports in Türkiye include Mersin, İskenderun, İzmir and Güllük.