Silicone Rubber Insights – Topsil Silicone Blog

RTV Silicone vs RTV-2 | Key Differences Explained

You know that moment when you stand in the hardware store, staring at rows of silicone tubes, and realize you have no idea which one fits your project. Yeah, we have all been there. Here is the thing about rtv silicone. It shows up everywhere. Sealing your shower. Protecting circuit boards. Creating molds for chocolate truffles or jewelry prototypes. But the gap between standard rtv silicone and rtv 2 can decide if your work succeeds on the first try or costs you extra time and cash. And if you build something important, medical device prototypes, food-safe baking molds, or just a leak that refuses to stay fixed, knowing what is […]

What precautions should be taken when importing molding silicone from China?

Importing silicone from China is tricky. If you focus only on price, you might lose your entire investment. You need to know the risks first. The most important precaution is to prioritize quality stability[^1] over the lowest price. Many cheap options rely on recycled "cracking material," which leads to unstable viscosity[^2] and poor curing. Always test samples for shelf life[^3] and flow to avoid wasting materials and damaging your valuable master molds. I have worked in this industry for over 15 years. I have seen many customers from the Middle East and Africa make the same mistake. They look at the price tag and smile. Then, they get the shipment […]

RTV Silicone vs RTV-2 | Key Differences Explained

You know that moment when you stand in the hardware store, staring at rows of silicone tubes, and realize you have no idea which one fits your project. Yeah, we have all been there. Here is the thing about rtv silicone. It shows up everywhere. Sealing your shower. Protecting circuit boards. Creating molds for chocolate truffles or jewelry prototypes. But the gap between standard rtv silicone and rtv 2 can decide if your work succeeds on the first try or costs you extra time and cash. And if you build something important, medical device prototypes, food-safe baking molds, or just a leak that refuses to stay fixed, knowing what is […]

Platinum vs Tin Cure Silicone: Which is Right for Your Project?

You’re about to invest time and effort into a mold-making project, but one big decision stands in your way: choosing between platinum-cured silicone and tin cure silicone. The silicone you select can make or break the results. Platinum cure silicone is all known as the food-safe, highly durable, and long lasting. while Tin cure silicone is more affordable, flexible, and friendly for beginner If you’re a new or mid-level mold maker, proper guidance is essential for picking the right material. That’s why this guide carefully breaks down platinum silicone vs tin cure silicone, their benefits, key differences, and ideal applications. To make your choice even simpler, you’ll also find a convenient comparison table included. […]

Why Is My Silicone Rubber Curing Too Fast?

You’ve carefully measured and mixed your silicone, ready to create the perfect mold. But almost instantly, it starts to thicken, turning into an unusable gel. Now your project is at risk, and valuable material is wasted. The most common reasons your silicone cures too fast are high ambient temperature[^1], the age of the curing agent[^2], and a misunderstanding of what "working time[^3]" means. A simple 5°C increase in temperature can slash the working time in half, and the definition of "usable time" often differs between you and the manufacturer. A person looking frustrated at a cup of partially cured silicone This is a problem I’ve seen firsthand, and it can […]