Case study / Amazon catalogue transformation

From a fragmented paint range to a marketplace built for scale.

PaintNuts was not a conventional listing project. The work involved rebuilding an existing Amazon presence, creating an enormous colour-led catalogue, launching new divisions and turning complex product data into a commercially usable marketplace operation.

AMAZONCATALOGUESEOA+ CONTENTIDQAUTOMATIONCOMPLIANCE
250K+Marketplace listings implemented
41 → 93Amazon IDQ score
+94%Annual Amazon sales revenue, 2024 vs 2022
6-FIGURE+Monthly Amazon sales value reached
The starting point

A business expanding faster than its Amazon catalogue.

When the collaboration began, Motornuts owned PNT Paints and operated PaintNuts Car Touch Ups. During the engagement the wider proposition expanded again, with PaintNuts Home and PaintNuts Bodyshop added as new divisions.

PNT Paints was already on Amazon, but the catalogue was effectively dormant: weak ASIN relationships, disconnected colours and no marketplace structure that reflected the breadth of what the business could actually manufacture and sell.

The first priority was foundational: build the catalogue correctly before trying to scale demand.

PNT Paints to PaintNuts Home brand transition
Brand expansion

PNT Paints → PaintNuts Home

The Amazon work sat inside a broader commercial transition. Existing PNT products had to become part of a more structured PaintNuts marketplace system while entirely new Home and Bodyshop propositions were being created around them.

01 / Automotive

Every colour. Every format. Every buying route.

PENS

Individual colour listings

Built the touch-up pen catalogue so matched colours could be found and bought individually on Amazon.

BUNDLES

Primer, lacquer and complete repair options

Created individual colour products alongside primer bundles, lacquer bundles and complete primer + colour + lacquer combinations.

AEROSOLS

The same architecture at aerosol scale

Extended the catalogue logic across spray-paint formats rather than limiting the range to touch-up pens.

CONTENT

SEO, imagery and A+ Content

Built the customer-facing marketplace presentation around the catalogue, not just the underlying product data.

QUALITY

IDQ started at 41

Catalogue quality became a measurable workstream from the beginning and ultimately rose to 93.

02 / Building at scale

This was as much a data-production problem as a marketplace problem.

Thousands of colour and format combinations could not be created efficiently one listing at a time. The work required repeatable data, image-production and catalogue systems.

01
Mass Excel workflows

Large spreadsheets structured and managed catalogue data across colours, formats, bundles and product combinations.

02
Photoshop scripting

Repeatable scripts and workflows generated RAL and automotive imagery at the volume required.

03
Swatch systems

Colour swatches improved the customer experience around products where exact colour choice was central to purchase.

04
ASIN relationships

Relationships and catalogue structure turned disconnected products into a more navigable marketplace system.

03 / PaintNuts Home

A new division taken from product range to Amazon catalogue.

PaintNuts Home launched during the engagement. The work covered category creation, RAL implementation, swatches, SEO, listing structure and A+ Content across the catalogue.

The UPVC example below is one of the listings built as part of that work. It went on to generate very substantial sales volume and has received Amazon's Choice recognition on multiple occasions.

PaintNuts Home UPVC Window and Door paint product preview
LIVE WORK / AMAZON
Live Amazon example / Home

PaintNuts Home — UPVC Paint

Listing build, SEO, colour swatches and A+ Content created as part of the Home marketplace expansion.

VIEW LIVE AMAZON LISTING↗
Current listing content may have changed since the original implementation.
PaintNuts colour matched automotive paint pen preview
LIVE WORK / AMAZON
Live Amazon example / Automotive

Custom Colour-Matched Paint Pen

A custom automotive paint-pen listing created as part of the original Amazon catalogue build. Elements of the original work remain, although the current content has since been modified.

VIEW LIVE AMAZON LISTING↗
Current listing content is not presented as entirely unchanged original work.
The operating system

What made the catalogue commercially usable.

The value was not just in the number of listings. It was in building repeatable systems that could keep a very large catalogue searchable, governable and commercially useful.

SEARCH

Title + keyword architecture

Search-led naming and content structures that balanced customer language, paint data and marketplace requirements.

DATA

Attribute completeness

Product data treated as part of conversion and discoverability rather than administrative housekeeping.

CONTENT

A+ as a system

Enhanced content used across divisions to explain the product, build confidence and strengthen the brand experience.

RANGE

Colour-led navigation

Swatches, variants and relationships designed around how customers actually buy specialist paint.

REPORTING

ABC prioritisation

Performance reporting used to decide where catalogue attention mattered most commercially.

GOVERNANCE

Compliance at scale

Trademark hits, suppressions, violations and catalogue inconsistencies handled as recurring operational work.

04 / Catalogue governance

Building it was only half the job. Keeping it usable mattered too.

IDQ

41 → 93

Improved product-data completeness across titles, attributes, content and catalogue structure.

TRADEMARK

Manufacturer-name and trademark hits

Worked through automotive policy friction while maintaining terminology customers needed to search.

VIOLATIONS

Marketplace violations and suppressions

Investigated affected patterns and corrected catalogue issues at scale.

SEO

Title and keyword management

Maintained discoverability while the catalogue and Amazon requirements evolved.

REPORTING

ABC reporting

Used performance data to prioritise work instead of treating every listing as equally important.

05 / Confirmed commercial development

The catalogue work supported a materially larger Amazon business.

The headline commercial statements below come from historic management confirmation rather than estimation.

ANNUAL AMAZON SALES+94%

Increase in annual Amazon sales revenue comparing 2024 with 2022.

MONTHLY SCALE6-FIGURE+

Monthly Amazon sales value exceeded six figures during the developed period.

DATA QUALITY41 → 93

IDQ improvement over the engagement.

CATALOGUE SCALE250K+

Listings implemented across the broader marketplace catalogue.

Proof to add

Make the evidence visual.

These editable proof slots are intended for approved internal screenshots, catalogue reports, A+ content, sales evidence or marketplace imagery.

PROOF 01IDQ / catalogue reportHistoric evidence showing the progression from 41 to 93.
PROOF 02Home listing / A+ / swatchesShow the creative and catalogue system used across PaintNuts Home.
PROOF 03Sales-growth evidence2022 vs 2024 reporting or an approved management statement.
Catalogue becoming difficult to control?

Scale should make the catalogue stronger, not harder to operate.

Northline can audit catalogue architecture, data quality, listing structure, SEO and compliance, then turn the findings into actual marketplace implementation.

DISCUSS CATALOGUE MANAGEMENT→