Founded in 1967, Petrol is one of the largest independent lubricant companies in Brazil. My connection with the company came through my work with Sindilub, of which Petrol is a member, an advertiser in Sindilub Press magazine and a participant in events. From that relationship, I developed ads for the magazine and, later, a UX/UI project for a digital product lookup tool.
My collaboration
Creation of ads for Sindilub Press magazine.
Development of visual concepts for promotional materials.
Research and information architecture for the digital tool.
UX, UI and prototyping of the product lookup interface.
Creation of visual elements and graphic components for the project.
PROJECT — 01
Product Search Tool
This prototype was designed to make it easier to find the right lubricant bottle for each need. I developed the product's UX and UI, following the manufacturer's visual identity guidelines.
Project built with the Adobe suite (Illustrator and Photoshop), plus Figma and generative AI for inserting placeholders.
PROJECT — 02
Ad Campaign
17 ads were developed for Sindilub Press magazine, divided into four distinct phases, each following its own visual concept.
I was responsible for the core idea, visual identity, graphic design, image selection and treatment, plus finalizing the files for print, screen and social media.
A 10/10 client relationship
I'm very grateful for how consistently friendly and kind Petrol was with me, maintaining complete professionalism throughout the entire partnership. An admirable company for its competence, ethics and respect for the people it works with.
Transparency note
Disclaimer
This portfolio brings together work in branding, graphic design and, more recently, product design. For it to work well as a showcase — and to respect the clients and companies involved — a few points are worth making clear.
About the projects shown
Some projects were prototypes or proposals presented to clients, but were never implemented or were later changed.
Others were revisited and adapted with a fresh perspective, keeping the spirit of the original work while updating how it's presented here.
Some original images received presentation, framing or treatment adjustments for better display in this showcase.
Several relevant projects aren't included here due to contractual confidentiality.
Verification
The professional experiences and projects shown here are real and can be verified upon request.
Removal requests
If you represent a company or client mentioned in this portfolio and would prefer this material not be shown publicly, please reach out at rogerweikers@gmail.com and I'll arrange for its removal.
About how this site was built
This site was conceived, written, formatted and implemented by me. To build it, I used the Adobe suite (Photoshop, Illustrator and Dreamweaver), plus Microsoft 365 for organization.
I also used generative AI tools as occasional support in a few steps, including code, text polishing, research and image treatment. The creative direction, curation, editing and final decisions were mine.
