Making Batik Wax Java — Mixture of Klowong Wax and Traditional Tembokan

Malam (batik wax) is a resist material used to cover fabric so that dye cannot penetrate the covered areas. This technique is called wax-resist dyeing — a principle that has been used in Java for over 1,000 years. Batik wax is not ordinary wax, but a specific mixture of several materials with different properties. The main ingredients are beeswax, paraffin, and gondorukem (damar resin, from Shorea sp. trees). Each ingredient has a role: beeswax makes the wax flexible and adheres strongly to fabric; paraffin makes the wax harder and easier to crack (for the crackle effect); damar resin makes the wax harder and increases resistance to prolonged dyeing processes. The mixture proportions vary depending on the type of wax desired — malam klowong, malam tembokan, and malam biron.

Gondorukem (or damar) is a resin from trees of the genus Shorea (family Dipterocarpaceae), originating from tropical forests in Southeast Asia. The color ranges from clear yellow to light brown, with a hard and brittle (glassy) texture. The softening point is around 75-85°C. Gondorukem makes batik wax harder, increases adhesion to fabric, and increases resistance to prolonged dyeing immersion. Before mixing, gondorukem must be crushed into a coarse powder — large pieces take a long time to melt and do not mix evenly. Crush gondorukem in a mortar or wrap it in cloth and then pound it with a hammer until it breaks into small pieces (size 5-10 mm). If there is too much gondorukem, the wax becomes very hard and is difficult to use with a canting — usually the proportion of gondorukem is only 5-15% of the total mixture.

Klowong wax is used for drawing main lines (outline) of batik motifs using a tulis canting. This wax must be flexible, stick strongly, and not crack easily so that dye does not leak through cracks. Traditional Central Javanese klowong wax recipe (Solo/Yogyakarta): beeswax 60-70%, paraffin 20-25%, rosin 10-15%. Example for 1 kg of klowong wax: beeswax 650 grams, paraffin 200 grams, rosin 150 grams. Melt the beeswax first in a pan (highest melting point), then add paraffin (melts faster), finally add rosin powder little by little while stirring evenly. Rosin added too much at once can cause the wax to foam (berbusa). Total mixture temperature must not exceed 100°C — if it boils, beeswax is damaged and the wax becomes easily scorched.

After the wax is ready, prepare the equipment for the batik process. Canting is a small copper tool with a bamboo handle used to draw patterns using melted wax. There are several types of canting according to the size of the spout: canting cecek (small spout, for dots and fine details, diameter 0.5-1 mm), canting klowong (medium spout, for main lines/outline, diameter 1-2 mm), and canting tembokan (large spout, for covering wide areas, diameter 2-4 mm). Clean the canting spout with thin wire to remove remaining frozen wax inside. Prepare a cloth to wipe wax drips from the canting before applying it to the fabric. Place the wax pan on a stove with stable heat, fill with wax pieces, and wait until it melts evenly at a temperature of 60-70°C. Now it is ready to start batik.