White masterbatch / general-use and ABS-focused grades

White masterbatch selected around your resin and process.

Sinfone introduces general-use white grade 3450 and ABS-focused white grade 3125. For a useful comparison, start with the resin used in your finished product, the processing method and the white appearance you need. A grade number alone does not establish suitability.

Request a white grade review Compare 3450 and 3125

Grade comparison

3450 and 3125 answer different starting questions.

This comparison summarizes the published product introduction. Ask for current grade-specific technical information before specifying or substituting a material.

Swipe or scroll sideways to compare. Keyboard users can focus the table and use the arrow keys.

White masterbatch grade comparison: established direction and items to confirm
Review point	White grade 3450	ABS-focused white grade 3125
Published direction	General-use white masterbatch.	White masterbatch focused on ABS-related injection applications.
First process discussion	Injection molding, blown film or blow molding, depending on the application.	ABS injection-molded parts, such as appliance housings and similar molded products.
Information to share	Final-part resin, processing method, part or film thickness, white target and current material reference.	ABS resin grade if known, part geometry, molding conditions and approved white appearance.
What needs confirmation	Carrier compatibility, pigment content, addition rate, opacity and the applicable test conditions.	Compatibility with the specific ABS system, addition rate, appearance and relevant performance requirements.
Next step	Discuss grade 3450	Discuss grade 3125

A common white target does not make grades interchangeable.

The base resin, thickness, processing conditions and acceptance criteria belong in the comparison. Public information here does not specify a universal pigment percentage, loading rate, regulatory approval or guaranteed result.

Application discussion

What changes between molded parts and film?

Molded housingsIdentify the final resin, visible surfaces, part thickness and approved appearance. For ABS parts, include the resin grade and ask whether 3125 is a suitable starting point.

Blown filmShare the resin system, intended film structure and thickness, target appearance and any known processing or dispersion issues. Review 3450 for the actual film requirement rather than transferring a molded-part result.

Blow moldingDescribe the container or finished item, wall thickness and required appearance. Make application, compatibility and document requirements part of the grade review.

See the application and processing discussion guide.

A useful first brief

Send the inputs that help compare a white grade.

Your company and role: processor, distributor, brand owner or sourcing representative.
The resin and processing method used for the finished product.
A part, film or approved white reference, and its thickness where relevant.
The current grade and addition rate, if known, with any issue you want reviewed.
The requested sample quantity, production quantity and destination as separate fields.
The technical document or market-specific requirement that needs review.

Unknown fields can remain open. Describe the gap instead of substituting an assumed specification.

Use the RFQ checklist

White masterbatch questions

Before selecting a sample.

Is 3125 a general replacement for 3450?

No general substitution is established by the product introduction. 3125 is presented for ABS-related injection applications, while 3450 is a general-use white direction. Review your actual resin, process and required appearance before choosing either grade.

What addition rate or pigment content should I specify?

Request the current technical information for the proposed grade and discuss your application. State separately whether a percentage means pigment content or the masterbatch addition rate in the final resin. This page does not publish a universal percentage or dosage.

Can I request samples and technical documents?

Samples can be discussed for project review. Ask for the TDS and any relevant report or certificate for the particular grade and requirement. The product introduction lists 25 kg bags; confirm packaging, availability and commercial terms for your order.

Does a white grade automatically satisfy food-contact requirements?

No. State the intended market, finished application and applicable requirement, and ask what evidence covers the proposed grade. A document request or a general product description does not establish regulatory suitability.

Start with your production conditions, then review the grade.

Send a white masterbatch brief for 3450, ABS-focused 3125 or an open grade comparison. If the target is a specific shade rather than standard white, review custom color matching. For a black requirement, see grade 2016.

Start a white masterbatch inquiry Review quality and document support